It has been a terribly long time since I last managed to get out with the scope, but last night we finally did it! Off to Heathcote because it's the start of dark night.We took both the 5" Tak and the 16" Dob, and got set up nice and early so that we had time for the obligatory admiring of everyone else's scopes before HOORAY the stars came out and I could finally align.
I planned to look at a bunch of double stars, and I did, but then I realised that some of the ones I'd thought to see had a too-small separation so that made me sad. Still, the ones I bagged were very pretty, so that was nice.
After that... well, there was a bit of random looking. But yes, my title is indeed accurate: someone announced to the world at large that they knew a supernova had appeared in NGC1365 (better known to you and me as the Zorro galaxy, because it looks like a Z), so there was a bit of a rush to find it. And there it was: a star that was not there last time we looked at that galaxy. It's only about 5 days (... and however many million light years...) old. I cannot begin to explain how incredibly excited I was.
What else? I am utterly standing by the idea that I found Uranus - I swear it looked vaguely blue and disk-like - and I know that I found Neptune, so that was very nice. I get a good view of the Small Magellanic in my Tak; that is, I can see the whole lot, which is pretty cool.
Thanks to J's Dob, we saw a number of faint fuzzies, some of which even looked like galaxies: the Grus quartet in particular, a few in Fornax and Sculptor... the one knows as the Cigar is pretty cool because it's (relatively) so big. However nothing is quite as cool as Andromeda, which we got to see through our neighbour's 20" Dob because he was (deliberately) in a very good position for the northern sky - and it was amazing. (Although not as cool as a supernova.)
Finally, after much frustration with trees, Orion made it up to clear viewing so I got to finish off the night in the best way possible. I will never, ever get bored by the Orion Nebula. I promise. I love my Tak because I can effectively zoom in to see the Trapezium and try to ferret out the last two faint stars... or I can have the whole view of the entire nebula (well, nearly) and just amuse myself by finding shapes in the dust.
Also, Jupiter too made it over the trees... well and J manhandled the scope so that it was in a better viewing position. So I got to totally blow my night vision on it, which was cool, although the seeing was a bit mush. The four Galilean moons were out in glory, and I definitely saw three cloud bands with maybe some mottling around one pole.
We made it to about 1am. I had thought, early in the night, that going the freezer suit was the weak option... especially when the Norwegian neighbour mentioned he used to wear one observing IN NORWAY and when the Scottish neighbour mentioned observing in MINUS 26 DEGREES. But whatever. I was glad by the time we were packing up.
Showing posts with label m42. Show all posts
Showing posts with label m42. Show all posts
11 November 2012
06 March 2011
ASV Messier Night
This weekend we went to the annual Messier Night held by the Astronomical Society of Victoria, at their dark site a bit out of Melbourne. We arrived mid-afternoon; staked out a spot, and set up our enormous (brand new) tent in the camping area. We set up the PST in the observation field; there was another solar scope somewhere else, which I didn't have a look through. We had a number of people come past to have a look, and they were pretty impressed, which was of course gratifying. The sun was looking awesome: one sunspot by itself, and a 'little' clump of solar spots in the other hemisphere. There were some cool prominences going on too, one in particular that was quite feathery. I didn't actually get much of a look, but that's ok. Hopefully the clouds will stay away in Melbourne a bit more, so I can get it out here.
We set up Copernicus and Keppler before having some food; both got some comments from other astronomers out setting up. People were mostly curious about why our lovely 128mm Tak was in the observational field rather than the photographic.
The night itself was well organised. The site is great - a bunkhouse and toilets, and they had a Lions Club out there with food and drinks - and they had a number of people giving short talks about different aspects of astronomy, as well as someone later in the night giving a talk about what was visible. I hadn't expected that there would be so many people for whom this was a completely new experience; the ASV must have advertised the night outside of the Society itself. It was a good idea, I think: I heard someone very excited about being able to borrow one of the ASV's scopes when they got home. As a consequence of this, though, there were a lot of people wanting to have a look through the various telescopes that were set up. Happily, I had no plan for the night other than find Saturn, and use the Argo to go a tour of the Messier objects.
Early on I had a look at the Pleiades - which just never looks good through a scope - and the Hyades, which I like; it forms quite a distinct triangle. I tried to split Procyon on discovering that it was a double (I was trying to figure out the stars on Canis Minor), but the atmosphere was pretty turbulent, and I have no idea what the mags of the stars are. It finally got dark enough that M42 looked awesome, which was of course a delight.
I had a look at a few Messiers - so many of the open clusters are just dull, and I didn't spend much time on them. Saw M78, that lovely little nebula in Orion, with two associated stars. Then Saturn was high enough above the trees to make it worth having a look - at least if it's something new - and I think, over the night, maybe 40 or 50 people had a look at it. There were some people who had never ever looked at a planet through a scope, and they were seriously impressed. It was a lot of fun, actually; I really enjoy helping people appreciate the night sky. Over the rest of the night I also showed some people Omega Centauri and 47Tuc, impressive of course, and then I finished with M42 - of course - and showed a few people that, too, which they all enjoyed.
It didn't get as cold as I had feared, so the freezer suits never made an appearance (happily!). I made it to 1am comfortably, but from there I started to fade, so packed Keppler away and just had a look through Copernicus. Early on I had looked at the Tarantula Nebula through J's new 20mm Nagler, and it looked spectacular; so did 47Tuc, and an amazing planetary nebula with a hole in the middle. Later in the night it was dark enough to see the Horsehead Nebula, and I think this time that I really did see it, which is thrilling. The Flame Nebula was more interesting, though. Also, the Sombrero Galaxy: seriously, seriously cool. The dust lane was clearly visible... it may be one of the most interesting galaxies I've seen, actually. Just before bed we had a look at the Spindle Galaxy - which I didn't look at long enough to see the elongated ends - and the Ghost of Jupiter, which was just mush. Finished on Omega Centuari, which was an adequate substitute for Orion. I guess.
In the tent by around 2am.
Labels:
47Tuc,
asv,
flame nebula,
horsehead nebula,
hyades,
leo triplet,
m42,
m78,
messiers,
omega centauri,
pleiades,
saturn,
solar,
sombrero galaxy,
spindle galaxy,
tarantula nebula
04 January 2011
Last night of astroholiday
The wind did not let up for our last night of our astroholiday, but we went out anyway. J had earlier set up the PST for a bit of solar viewing - and in order to do that, put the double plate on the Losmandy mount. Since it was on there anyway, we decided to try the double up: the 128 and the 90mm. Put the 10mm eyepiece in the 128 and 21mm in the other, with the idea that this would give quite a different view of various objects. It was good in theory, I think, and certainly did give different views. However, it was quite heavy, and seemed to have a bit of trouble moving via the hand controls; this was probably partly to do with the wind, but may als mean we didn't have it quite balanced right.
Anyway, I naturally started out with Jupiter, and it was actually good enough seeing that I put the 6mm in Keppler, and magnified it with the 5mm even. A couple of dark bands were obvious.
I decided to continue my little Messier marathon from last night, since I knew I'd missed a few by looking when they had gone behind the house. I caught M78 - which is a neat splodge of nebulosity with two stars seemingly embedded in it; and M37, which in the 10mm was large, faint, with many distinct stars; in the 21mm, more of a grey smudge, although some individual points were still distinct. M36 looked similar, with a shape I'm claiming as like a starfish. I missed M74, M38, and M34 by not being quick enough! So I went to some others: M48 is still a boring open cluster, but M79 is endearing itself by being such a cute little globular.
I was getting a bit put out by the wind by this stage, so J dragged me over to Copernicus and showed me the Grus quartet (which was actually a triplet at this stage, because it wasn't quite dark enough for the whole show), which is always cool: seeing three or four galaxies apparently so close together is breathtaking. He also showed me NGC246, which he is quite in love with: it's a planetary nebula, with three bright points within/to the side; I'm not sure whether they're physically associated with it or not.
We decided to call it an earlier night than normal, so to finish up I dialled up the Popular Deep Sky Objects tour and had a quick spin. I tried for the Witchhead Nebula, knowing it was going to be too big to see the whole thing in one eyepiece (3 degrees!), but hoping I would at least be able to see some nebulosity. I am dubious, although J claims it was obviously greyer in some sections. 47Tuc - such a bright core, so striking an object! - and, of course, the Orion Nebula finished the night off.
Anyway, I naturally started out with Jupiter, and it was actually good enough seeing that I put the 6mm in Keppler, and magnified it with the 5mm even. A couple of dark bands were obvious.
I decided to continue my little Messier marathon from last night, since I knew I'd missed a few by looking when they had gone behind the house. I caught M78 - which is a neat splodge of nebulosity with two stars seemingly embedded in it; and M37, which in the 10mm was large, faint, with many distinct stars; in the 21mm, more of a grey smudge, although some individual points were still distinct. M36 looked similar, with a shape I'm claiming as like a starfish. I missed M74, M38, and M34 by not being quick enough! So I went to some others: M48 is still a boring open cluster, but M79 is endearing itself by being such a cute little globular.
I was getting a bit put out by the wind by this stage, so J dragged me over to Copernicus and showed me the Grus quartet (which was actually a triplet at this stage, because it wasn't quite dark enough for the whole show), which is always cool: seeing three or four galaxies apparently so close together is breathtaking. He also showed me NGC246, which he is quite in love with: it's a planetary nebula, with three bright points within/to the side; I'm not sure whether they're physically associated with it or not.
We decided to call it an earlier night than normal, so to finish up I dialled up the Popular Deep Sky Objects tour and had a quick spin. I tried for the Witchhead Nebula, knowing it was going to be too big to see the whole thing in one eyepiece (3 degrees!), but hoping I would at least be able to see some nebulosity. I am dubious, although J claims it was obviously greyer in some sections. 47Tuc - such a bright core, so striking an object! - and, of course, the Orion Nebula finished the night off.
03 January 2011
And then there was wind
Even more wind last night. Still, at least it kept the possibility of mozzies at bay.
Tragically, I discovered that I could my thumbs all the way through the thumbs of my gloves... very sad. Especially since it got awfully cold.
Anyway, I decided to do a mini Messier marathon for this session, since that required no planning on my part and hey, it's the Messier catalogue! I did try looking at Jupiter first of course, but again it was mush; the seeing was atrocious in the west, and again the wind was not playing nice.
M79: lovely little globular cluster. A couple of bright stars to the side, better with averted vision. Quite irregular.
M77: itty little galaxy. Better in Copernicus with the 10mm, but still no details obvious.
M42 and 43: a favourite, of course. I looked at the Trapezium, and am convinced that I could see three additional faint stars in between the main bright ones. I tried putting the 6mm in, but the wind made focussing a nightmare.
M41: in Copernicus with the 21mm, very bright and interesting; numerous yellow and bright white stars. With the 35mm, boring. In Keppler, the 10mm gave a chaotic and somewhat overwhelming view of the cluster; the 21mm made it more coherent, and showed off the lovely yellow stars in the centre.
M50: chaotic in the 10mm, boring through the 21mm.
M47: a nice enough little cluster with a somewhat interesting arrangement; I liked the line of bright stars through the middle.
M46: could not be seen in the same field of view as M47 through Keppler; good case in point of how awesome Ptolemy is, for wide views. A bit boring, overall, although exciting to see the planetary nebula off to the side (NGC2438).
M45: in Copernicus, it was a group of bright dots with what is apparently nebulosity, but it just looked like haze around individual stars to me. The Pleiades is, I think, best naked eye.
M93: boring... looks a bit like an anvil. Or maybe a teapot.
M48: chaotic in the 10mm; 21mm made it look like the outline of something I couldn't quite figure out.
M67: looks a bit like a comma. Possibly some nebulosity?
M44: some trouble finding this as the Argo thought it was upside down... impossible int he 10mm, and no shape in the 21mm - just looked like a bunch of visual double and triples. Again, more interesting naked eye, where it was a pronounced smudge.
M1: large grey smudge in Copernicus; ditto in Keppler, bigger of course in the 10mm. Not very crabby-looking.
M35: an open cluster; boring except for the fact that it has a little companion that looks like a globular but is actually a really tight little cluster.
And that is when tragedy struck! Well, when I say tragedy, I mean that M36, 37 and 38 were all behind the house AND that the RA encoder died! J gallantly resuscitated it thanks to his trusty Allan key set. At this point it was after midnight and getting awfully cold, so there was no way I was going to re-align. Thus, to bed.
Tragically, I discovered that I could my thumbs all the way through the thumbs of my gloves... very sad. Especially since it got awfully cold.
Anyway, I decided to do a mini Messier marathon for this session, since that required no planning on my part and hey, it's the Messier catalogue! I did try looking at Jupiter first of course, but again it was mush; the seeing was atrocious in the west, and again the wind was not playing nice.
M79: lovely little globular cluster. A couple of bright stars to the side, better with averted vision. Quite irregular.
M77: itty little galaxy. Better in Copernicus with the 10mm, but still no details obvious.
M42 and 43: a favourite, of course. I looked at the Trapezium, and am convinced that I could see three additional faint stars in between the main bright ones. I tried putting the 6mm in, but the wind made focussing a nightmare.
M41: in Copernicus with the 21mm, very bright and interesting; numerous yellow and bright white stars. With the 35mm, boring. In Keppler, the 10mm gave a chaotic and somewhat overwhelming view of the cluster; the 21mm made it more coherent, and showed off the lovely yellow stars in the centre.
M50: chaotic in the 10mm, boring through the 21mm.
M47: a nice enough little cluster with a somewhat interesting arrangement; I liked the line of bright stars through the middle.
M46: could not be seen in the same field of view as M47 through Keppler; good case in point of how awesome Ptolemy is, for wide views. A bit boring, overall, although exciting to see the planetary nebula off to the side (NGC2438).
M45: in Copernicus, it was a group of bright dots with what is apparently nebulosity, but it just looked like haze around individual stars to me. The Pleiades is, I think, best naked eye.
M93: boring... looks a bit like an anvil. Or maybe a teapot.
M48: chaotic in the 10mm; 21mm made it look like the outline of something I couldn't quite figure out.
M67: looks a bit like a comma. Possibly some nebulosity?
M44: some trouble finding this as the Argo thought it was upside down... impossible int he 10mm, and no shape in the 21mm - just looked like a bunch of visual double and triples. Again, more interesting naked eye, where it was a pronounced smudge.
M1: large grey smudge in Copernicus; ditto in Keppler, bigger of course in the 10mm. Not very crabby-looking.
M35: an open cluster; boring except for the fact that it has a little companion that looks like a globular but is actually a really tight little cluster.
And that is when tragedy struck! Well, when I say tragedy, I mean that M36, 37 and 38 were all behind the house AND that the RA encoder died! J gallantly resuscitated it thanks to his trusty Allan key set. At this point it was after midnight and getting awfully cold, so there was no way I was going to re-align. Thus, to bed.
The next night, in the Grampians
To be honest, it felt like a bit of a dud night. I was using Keppler (Tak128), and it was quite windy so it was a little harder to manage than little Ptolemy would have been. Also, I had chosen some dud objects to try and chase: that is, they were smaller and/or dimmer than I realised, so they were hard to find and/or actually see. Le sigh.
Jupiter looked very average. This was largely to do with the wind; it was hard to get a steady view. Basically pointless with the 6mm eyepiece; 10mm was a bit better, with a few bands of cloud visible. I then tried to find a few things but got frustrated, so J hauled me over to Copernicus to show me some galaxies. First, though, IC418: a groovy little planetary nebula, which looked amazing through the 4mm: that's 450x magnification, J assures me, which sounds like a lot. Galaxies: NGC253 (a large grey smudge of a galaxy, brighter at the centre with a couple of very bright spots, which may actually not be physically associated with it? also possibly a dust lane); NGC288, NGC247, NGC300, and NGC7793 (variations on Grey Smudge, some larger than others). Could not see the dwarf galaxy in Sculptor.
To finish the night I went back to Keppler. I looked at the Large Magellanic Cloud (the detail continues to amaze); Omega Centauri (huge, but I think 47Tuc is still my favourite); M79 (a great little globular); M78 (nebula, not that bright); and, naturally, M42. Which was a happy way to finish the night.
Jupiter looked very average. This was largely to do with the wind; it was hard to get a steady view. Basically pointless with the 6mm eyepiece; 10mm was a bit better, with a few bands of cloud visible. I then tried to find a few things but got frustrated, so J hauled me over to Copernicus to show me some galaxies. First, though, IC418: a groovy little planetary nebula, which looked amazing through the 4mm: that's 450x magnification, J assures me, which sounds like a lot. Galaxies: NGC253 (a large grey smudge of a galaxy, brighter at the centre with a couple of very bright spots, which may actually not be physically associated with it? also possibly a dust lane); NGC288, NGC247, NGC300, and NGC7793 (variations on Grey Smudge, some larger than others). Could not see the dwarf galaxy in Sculptor.
To finish the night I went back to Keppler. I looked at the Large Magellanic Cloud (the detail continues to amaze); Omega Centauri (huge, but I think 47Tuc is still my favourite); M79 (a great little globular); M78 (nebula, not that bright); and, naturally, M42. Which was a happy way to finish the night.
01 January 2011
New Year's Eve
We left the Little Desert and traveled over to the Grampians, for a change of scene during the day but still dark skies for observing. It was an horrendously hot day, which cooled off only gradually; and to make matters worse, it was incredibly windy - gusts up to 90kph in our area apparently. This made seeing decidedly sub-optimal; while I was still stooging around trying to get a good view of Jupiter, J announced that there was basically no point in me looking for double stars, because resolving them was going to be a pain in the butt. Tragedy! What was I going to do instead?!
Well, I had planned on looking at interesting things and doubles in Canis Major, so I did check out the open cluster NGC2362; it looked all right with averted vision, with quite a bright centre. I also tried looking at the open cluster + emission nebula of NGC2264, but the nebulosity was so faint through Ptolemy (90mm) that I might as well have been making it up.
I didn't have anything else planned, and was feeling a little weary to be honest (two nights of bed at 3am, and a 40C day, will apparently do that to you). So I decided to let J do all the work and just get the advantage of looking through the 16" Dob. He had a plan for looking at some galaxies in Fornax and Colomba, so that's what I did too. We saw:
* NGC1808, a long faint but obvious galaxy, with a bright centre;
* NGC1851, a tendrilly yet compact globular cluster;
* NGC2090 and NGC2188, both faint smears;
* NGC1792, a bigger grey smudge with a couple of bright spots visible;
* a group of five - maybe six - galaxies all visible within the same field of view (1 degree).
In between looking at those, I did end up going back and playing with Ptolemy. Firstly, I set the Argo to Identify, and played around finding stars: I now know Procyon, Castor and Pollux, and confirmed that Aldebaran is indeed that star in Taurus. Plus, I know where the constellation Lepus is (ish). Secondly, I decided to see what Messiers I could find. Most I had already seen before - M93 (boring open cluster); M46 and M47 (awesome to see in the same field of view, nice contrast with one tight and one loose open cluster); M50 (almost unviewable through the 35mm, being too small/dim). But I did get two new ones to tick off: M48 (small and dim open cluster), and M67 (another open cluster that I do like; it looks like someone took a bite out of the side). I was going to look for more but then my Argo's batteries died! Oh the humanity.
By this stage it was midnight, so we took a final tour of some old faves - 47Tuc, which looked INCREDIBLE and as fake as ever; the Tarantula Nebula, which I choose to think of as resembling a flower; and, of course, M42, whose nebulosity just looked brilliant through the Dob. I had to get a bigger eyepiece to get a better view of it!
Well, I had planned on looking at interesting things and doubles in Canis Major, so I did check out the open cluster NGC2362; it looked all right with averted vision, with quite a bright centre. I also tried looking at the open cluster + emission nebula of NGC2264, but the nebulosity was so faint through Ptolemy (90mm) that I might as well have been making it up.
I didn't have anything else planned, and was feeling a little weary to be honest (two nights of bed at 3am, and a 40C day, will apparently do that to you). So I decided to let J do all the work and just get the advantage of looking through the 16" Dob. He had a plan for looking at some galaxies in Fornax and Colomba, so that's what I did too. We saw:
* NGC1808, a long faint but obvious galaxy, with a bright centre;
* NGC1851, a tendrilly yet compact globular cluster;
* NGC2090 and NGC2188, both faint smears;
* NGC1792, a bigger grey smudge with a couple of bright spots visible;
* a group of five - maybe six - galaxies all visible within the same field of view (1 degree).
In between looking at those, I did end up going back and playing with Ptolemy. Firstly, I set the Argo to Identify, and played around finding stars: I now know Procyon, Castor and Pollux, and confirmed that Aldebaran is indeed that star in Taurus. Plus, I know where the constellation Lepus is (ish). Secondly, I decided to see what Messiers I could find. Most I had already seen before - M93 (boring open cluster); M46 and M47 (awesome to see in the same field of view, nice contrast with one tight and one loose open cluster); M50 (almost unviewable through the 35mm, being too small/dim). But I did get two new ones to tick off: M48 (small and dim open cluster), and M67 (another open cluster that I do like; it looks like someone took a bite out of the side). I was going to look for more but then my Argo's batteries died! Oh the humanity.
By this stage it was midnight, so we took a final tour of some old faves - 47Tuc, which looked INCREDIBLE and as fake as ever; the Tarantula Nebula, which I choose to think of as resembling a flower; and, of course, M42, whose nebulosity just looked brilliant through the Dob. I had to get a bigger eyepiece to get a better view of it!
31 December 2010
The Little Desert, Night Two
Not quite as good this second night. There were a few reasons for this:
1. Mozzies.
2. It stayed hot all night - maybe 23C by 2.30 - so the mozzies stayed around too.
3. More mozzies. They were trying to eat me through my clothes.
4. People. There were a few more people at the Lodge, so there were a few more lights on. Also, I actually knew one of the people! He and his friends came out at about 10pm to have a look, we showed them some of the usual suspects... and then he hung around til midnight. I wanted to have a look at the stuff I'd planned, but it wasn't that interesting, so I didn't feel like I could while he was there....
5. Mozzies.
6. Trying a new telescope. Um. Yes. Have I mentioned our new telescope? It's a Tak FS128 (5") which J picked up through his usual cunning ways. I've called it Keppler... and he's huge, in comparison with Ptolemy (90mm). Coming to grips with the different fields of view in the eyepieces, etc, took some doing, and I'm still not there yet.
What did I look at? Well, we started with Jupiter - of course - and it was by far THE most amazing and awesome view of Jupiter I have ever had, enough to almost make me want to sketch it. The main dark band was blindingly obvious, there was detail to the north and the south, and - perhaps most amazingly to me - the moons clearly appeared to be of slightly different shape and colour. Ganymede was obviously bigger and redder. I was totally blown away - as were the people we showed it to a bit later. We also showed them M42 and 43 - of course! - and it too looked stunning through the 128. In fact I looked at it several times over the night, and it just got better and bigger every time.
To get my mojo back a bit, after my acquaintance left, I took some time to just look up. Keppler has a box disconcertingly like a coffin, which it turns out makes an excellent bench, so I just lay back on it (the ground was awfully sandy) and stared up. Orion was pretty close to the zenith (we were pushing midnight by this stage), and the view was just delightful. I also had a chance to look at a few things through J's Dobsonian, probably my favourite of which was an awesome planetary nebula, NGC1360, with a bright core and a discrete cloud around it. I tried dialling up planetary nebulae to 'tour' on Keppler but it was a bit of a bust with the lights on in the distance.
Anyway, I decided to have a go at some doubles. Using the list of doubles in Orion from vol 1 of The Night Sky Observer's Guide, I had a look at and split: E627; E630; 17-rho Ori (a lovely double, orange and blueish); 19-beta Ori; E664; h2259 (although only the 3.6/10.8 mag stars, not the other companions); h697 (the triple); E697; E701; h2268; E114; E790; E816; 60 Ori and E877. Which, yes, was possibly a stupid number of doubles to look at it one night, but I did stop when I was bored. Additionally, I was practising with the Argo, because I found all of these by pushing the telescope around until the read-out on the Argo was the correct RA and Dec. There was a few times when it wasn't quite right, but overall it was a good way to start getting a handle on using the mount as well as the Argo - and getting myself more used to directions.
We stayed up until just after 2, determined to see Saturn. However, we were flagging fast, so when it was just above the horizon and mushy as all get-out (not coming clear at all, and looking like a weird bulging object as a result), we threw in the towel. Still, it was a good night overall (despite the mozzies), and we're hoping for a few more like it - this time in the Grampians.
1. Mozzies.
2. It stayed hot all night - maybe 23C by 2.30 - so the mozzies stayed around too.
3. More mozzies. They were trying to eat me through my clothes.
4. People. There were a few more people at the Lodge, so there were a few more lights on. Also, I actually knew one of the people! He and his friends came out at about 10pm to have a look, we showed them some of the usual suspects... and then he hung around til midnight. I wanted to have a look at the stuff I'd planned, but it wasn't that interesting, so I didn't feel like I could while he was there....
5. Mozzies.
6. Trying a new telescope. Um. Yes. Have I mentioned our new telescope? It's a Tak FS128 (5") which J picked up through his usual cunning ways. I've called it Keppler... and he's huge, in comparison with Ptolemy (90mm). Coming to grips with the different fields of view in the eyepieces, etc, took some doing, and I'm still not there yet.
What did I look at? Well, we started with Jupiter - of course - and it was by far THE most amazing and awesome view of Jupiter I have ever had, enough to almost make me want to sketch it. The main dark band was blindingly obvious, there was detail to the north and the south, and - perhaps most amazingly to me - the moons clearly appeared to be of slightly different shape and colour. Ganymede was obviously bigger and redder. I was totally blown away - as were the people we showed it to a bit later. We also showed them M42 and 43 - of course! - and it too looked stunning through the 128. In fact I looked at it several times over the night, and it just got better and bigger every time.
To get my mojo back a bit, after my acquaintance left, I took some time to just look up. Keppler has a box disconcertingly like a coffin, which it turns out makes an excellent bench, so I just lay back on it (the ground was awfully sandy) and stared up. Orion was pretty close to the zenith (we were pushing midnight by this stage), and the view was just delightful. I also had a chance to look at a few things through J's Dobsonian, probably my favourite of which was an awesome planetary nebula, NGC1360, with a bright core and a discrete cloud around it. I tried dialling up planetary nebulae to 'tour' on Keppler but it was a bit of a bust with the lights on in the distance.
Anyway, I decided to have a go at some doubles. Using the list of doubles in Orion from vol 1 of The Night Sky Observer's Guide, I had a look at and split: E627; E630; 17-rho Ori (a lovely double, orange and blueish); 19-beta Ori; E664; h2259 (although only the 3.6/10.8 mag stars, not the other companions); h697 (the triple); E697; E701; h2268; E114; E790; E816; 60 Ori and E877. Which, yes, was possibly a stupid number of doubles to look at it one night, but I did stop when I was bored. Additionally, I was practising with the Argo, because I found all of these by pushing the telescope around until the read-out on the Argo was the correct RA and Dec. There was a few times when it wasn't quite right, but overall it was a good way to start getting a handle on using the mount as well as the Argo - and getting myself more used to directions.
We stayed up until just after 2, determined to see Saturn. However, we were flagging fast, so when it was just above the horizon and mushy as all get-out (not coming clear at all, and looking like a weird bulging object as a result), we threw in the towel. Still, it was a good night overall (despite the mozzies), and we're hoping for a few more like it - this time in the Grampians.
Labels:
double stars,
friends,
holiday,
jupiter,
little desert,
m42,
m43,
saturn
30 December 2010
The Little Desert, Night One
While it's not exactly a desert, when I say we came here because it's a dark part of Victoria, it is seriously a dark part of Victoria.
My main aim on this first night was to play with my new Argo - a Christmas present - and get used to my Losmandy mount. While I grew to love my industrial green Tak P2Z, it is awfully nice not to have to remember to disengage the tracking and then re-engage.... Anyway, I aligned it pretty easily, and then had a look at Jupiter (of course). Since it's so easy with the Argo I also found Uranus - and even though it wasn't very dark, it was an obviously blue little disk.
I decided to start off by having a go at one of their tour functions, and chose Non-Stellar Objects within 30 degrees of Sirius and a lower limit of mag 8 - since I'll admit that it wasn't exactly pitch-black yet, but I was impatient. First off was M41, a bright open cluster, which looked great. The next few objects were also open clusters, and although they can be interesting enough the joy soon waned: I looked at NGC2345, M50, M47, and M46, skipped a number of NGC clusters, and then gave up and moved on to trying to find triple stars, again using the tour function. This too I fairly quickly gave up on; for my part, it was probably not quite dark enough to be trying to split triples, but it was frustrating in general because the Argo didn't supply mags for all of the stars, nor their separations, so I wasn't sure if I found them or not. And thus I moved on to the 'Bright Nebulae' tour.
First, the Rosette Nebula, around NGC2244. In Ptolemy (90mm refractor), the nebulosity was very faint indeed. However, I badgered J into finding it in Copernicus (16" Dob), complete with brand new filters, and WOW! It looked awesome - we couldn't fit the whole thing into the field of view in the 21mm. It was matched, and bettered in my scope, by M42 and 43, of course - I really do love this time of year - they just looked incredible. Every time I look at the nebula there it just looks brilliant.
I was interrupted at this point in my tour my J's excitement at having found the Horsehead Nebula. He got a H-beta filter specifically for finding this, and was over the moon at spotting it. I'm not as patient as him, so while I could see the band of nebulosity and just pick the 'divot' that marks the famous horse's head, I couldn't make out any detail. The Flame Nebula, however, was waaay more interesting, looking quite a lot like a maple leaf. He also showed me M1, the Crab Nebula - a large, faint, not very crabby smudge - and, a bit later, several faint galaxies around Fornax, including the awesome 'Zorro', NGC1365.
I looked at a few more bright nebulae - NGC2175, M78, NGC1975 (drowned out by M42), and a couple of others that I couldn't really pick - before going back to my old fave, double stars. As with the list of triple stars, I was a bit frustrated by the lack of information provided in the Argo about magnitudes and separation distances for the double stars. I ended up grabbing my Cambridge Double Star Atlas, and looking them up in it to see if it was worth my energy - but some of the ones listed on the Argo weren't listed in the Atlas... I know there are double star catalogues available to download, so I will to investigate those. Anyway, I saw E816 (a separation of 4.4"!! Very proud); Ori60; E838; E877; OE73; Ori68; and E766 (I really should figure out how to do Greek letters, since the E is meant to be sigma...). In doing so I also stumbled on an awesome little planetary, NGC2438, and a totally lovely open cluster, NGC2169.
To finish up the night I tried the non-stellar objects tour again, this time in the incredibly rich area around Carina. I skipped most of the open clusters, but looked at Omega Centauri (always breathtaking, and stupidly detailed); NGC2808 (another globular, this one quite faint); the Gem Cluster and Jewel Box (open clusters I will make an exception for); Centaurus A (a faint galaxy with what appears to be a split in the middle); and the seriously cool Ghost of Jupiter (another planetary nebula - I love it).
We packed it in around 2.15, with the moon rising: a crescent, it was so yellow it looked like a banana. If we'd hung around a bit longer we could have looked at Saturn, but my goodness it got cold. From complaining about the heat in the day, we ended up as rugged up as we've ever been while observing. Can't wait for tonight.
My main aim on this first night was to play with my new Argo - a Christmas present - and get used to my Losmandy mount. While I grew to love my industrial green Tak P2Z, it is awfully nice not to have to remember to disengage the tracking and then re-engage.... Anyway, I aligned it pretty easily, and then had a look at Jupiter (of course). Since it's so easy with the Argo I also found Uranus - and even though it wasn't very dark, it was an obviously blue little disk.
I decided to start off by having a go at one of their tour functions, and chose Non-Stellar Objects within 30 degrees of Sirius and a lower limit of mag 8 - since I'll admit that it wasn't exactly pitch-black yet, but I was impatient. First off was M41, a bright open cluster, which looked great. The next few objects were also open clusters, and although they can be interesting enough the joy soon waned: I looked at NGC2345, M50, M47, and M46, skipped a number of NGC clusters, and then gave up and moved on to trying to find triple stars, again using the tour function. This too I fairly quickly gave up on; for my part, it was probably not quite dark enough to be trying to split triples, but it was frustrating in general because the Argo didn't supply mags for all of the stars, nor their separations, so I wasn't sure if I found them or not. And thus I moved on to the 'Bright Nebulae' tour.
First, the Rosette Nebula, around NGC2244. In Ptolemy (90mm refractor), the nebulosity was very faint indeed. However, I badgered J into finding it in Copernicus (16" Dob), complete with brand new filters, and WOW! It looked awesome - we couldn't fit the whole thing into the field of view in the 21mm. It was matched, and bettered in my scope, by M42 and 43, of course - I really do love this time of year - they just looked incredible. Every time I look at the nebula there it just looks brilliant.
I was interrupted at this point in my tour my J's excitement at having found the Horsehead Nebula. He got a H-beta filter specifically for finding this, and was over the moon at spotting it. I'm not as patient as him, so while I could see the band of nebulosity and just pick the 'divot' that marks the famous horse's head, I couldn't make out any detail. The Flame Nebula, however, was waaay more interesting, looking quite a lot like a maple leaf. He also showed me M1, the Crab Nebula - a large, faint, not very crabby smudge - and, a bit later, several faint galaxies around Fornax, including the awesome 'Zorro', NGC1365.
I looked at a few more bright nebulae - NGC2175, M78, NGC1975 (drowned out by M42), and a couple of others that I couldn't really pick - before going back to my old fave, double stars. As with the list of triple stars, I was a bit frustrated by the lack of information provided in the Argo about magnitudes and separation distances for the double stars. I ended up grabbing my Cambridge Double Star Atlas, and looking them up in it to see if it was worth my energy - but some of the ones listed on the Argo weren't listed in the Atlas... I know there are double star catalogues available to download, so I will to investigate those. Anyway, I saw E816 (a separation of 4.4"!! Very proud); Ori60; E838; E877; OE73; Ori68; and E766 (I really should figure out how to do Greek letters, since the E is meant to be sigma...). In doing so I also stumbled on an awesome little planetary, NGC2438, and a totally lovely open cluster, NGC2169.
To finish up the night I tried the non-stellar objects tour again, this time in the incredibly rich area around Carina. I skipped most of the open clusters, but looked at Omega Centauri (always breathtaking, and stupidly detailed); NGC2808 (another globular, this one quite faint); the Gem Cluster and Jewel Box (open clusters I will make an exception for); Centaurus A (a faint galaxy with what appears to be a split in the middle); and the seriously cool Ghost of Jupiter (another planetary nebula - I love it).
We packed it in around 2.15, with the moon rising: a crescent, it was so yellow it looked like a banana. If we'd hung around a bit longer we could have looked at Saturn, but my goodness it got cold. From complaining about the heat in the day, we ended up as rugged up as we've ever been while observing. Can't wait for tonight.
Labels:
double stars,
galaxies,
gem cluster,
ghost of jupiter,
holiday,
horsehead nebula,
jupiter,
little desert,
m01,
m41,
m42,
m43,
m46,
m47,
m50,
m78,
omega centauri,
rosette nebula,
uranus
22 December 2010
Transits
We've dragged the telescope out twice in the last week or so, but only briefly. We haven't really had much summer, yet, so it's been quite cloudy and quite cool at night! Anyway, this may be my favourite celestial time of year: Jupiter still visible for a while in the West, and Orion visible at a really decent time in the East. Whee!
Both times we've had a look at Jupiter we've spied shadow transits, which I think is pretty amazing given they were both haphazard viewing opportunities. The first time it was Europa, and tonight it was little Io. Tonight in particular the shadow was a really dark circle on the disc of Jupiter - very obvious indeed.
Also today, the nights officially start getting longer again! Gone are the days when I was just all about the sunshine, baby. Now - ah, now, I get to be totally conflicted. Fun!
15 October 2010
Lostock: three potential nights of all-out viewing...
Ice in Space Astro Camp: three nights, at a remote Scout camp, with ~100 keen amateur astronomers+hangers-on. What could possibly go wrong?
Friday night: cloudy.
Saturday: the sun was out enough that a dude had his solar scope out, and we wandered over to be bothersome and have a squizz. I saw prominences! And the surface of the sun! Without my eyeball boiling!! ... I might be in love...
For all that it was annoying that we didn't get to observe every night, the camp was awesome. There was a lot of telescope-ogling, and deep discussions about eye pieces. Our cat's perch chairs drew a lot of comment, as did J's scope. The fact that we both have scopes and I wasn't there under sufferance also attracted notice, which I thought was a bit sad; the number of times I basically got asked if I was happy to be there, and then I pointed to my scope and said I got mine first.... There were a few other women there with scopes, but it was by and large a male gathering. It was neat to see a few blokes there with their kids, though, having left mum at home.
Anyway, we did observe on Saturday. Sitting at dinner, we kept sticking our heads out to look at the sky - hopefully noting the holes in the clouds - with the constant refrain being "I've seen it come good from worse...". At one point I realised I could see Jupiter, and I ditched whoever I was talking to and hared it back to our camp. I figured I would at least have a look at it, if nothing else. I caught Venus - lovely little crescent - and Jupiter, and then, all of a sudden, looked up: it was clear! The clouds were almost entirely gone! And wow, the whole camp... changed. Red lights zipping around the place, people excitedly discussing their favourite objects, arguing about collimation: it was cool. We had a little crowd in our area, what with two SDMs next to each other. I got a little frazzled because I couldn't figure out the constellations - I only know Scorpius and Sagittarius in the spring sky! But a couple of people showed me some interesting things, which was really nice of them.
I saw the globulars NGC6388, NGC6397, and NGC6723; BrsO-14 in Corona Australis, a binary with two small white stars; B86 and its accompanying dark nebula - don't think I've ever consciously seen a dark nebula before (the Coalsack doesn't count...); M27 - the Dumbbell Nebula! and possibly Barnard's dwarf galaxy. When I discovered that we could see Pegasus, I checked out the binary that is Matar, which has a bright yellow primary and a faint white secondary. Also through my scope I saw a few other random globular clusters, the Pleiades, M79, and we managed to stay up late enough (bed at 2am!) to see the glory that is Orion (I've missed him!).
Someone set up binoculars near us, through which I finally saw the Andromeda Galaxy. It was... a disappointment, frankly. I couldn't see it naked-eye, probably partly because it just doesn't get that high even in NSW, and through the binos it was just a blob. Still: furthest-away object you can (theoretically!) see naked-eye, and closest galaxy to our own. Nice to cross off the list :)
I also got to have a look through Rod's 20" scope, which he set up next to ours. It required a ladder to get to the eyepiece, and a trailer to bring it to the camp. I saw NGC1365 - a galaxy -which is apparently one of Rod's favourites, and was indeed spectacular. The Saturn Nebula is a weird green colour and does indeed look like Saturn, and 47Tuc was breathtaking. My favourite, though, was being able to see three out of four galaxies known as the Grus Quartet - the other one was just outside the field of view.
All in all, it was a seriously awesome night of viewing, and was a great way to finish the camp.
12 April 2010
Sketch
This past weekend we were in Ballarat again. We had hoped that we would get nice clear skies to do some observing. Thursday night was clear... but I was feeling absolutely dreadful, for no apparent reason, so I managed to stagger out and have a look at Saturn (awesome, especially with the extender, which J kindly found for me) and then staggered back inside.
J, however, produced this:

Apparently it's common to invert them, so:

... which I think is pretty awesome for a first go at drawing a nebula.
Friday night = absolutely no chance of clear skies. Boo hiss.
04 April 2010
Easter Sunday observing
Tonight started off as quite a family night. I got to show Saturn (and Titan and Rhea, and possibly Tethys although I might have been kidding myself) to most of J's family, who were all very appreciative, as well as Orion, which a couple of them had never seen. It's always great to show something like that and say - your eye sees that as one star, or a fuzzy blob at best. (Annoyingly, I couldn't split Rigel tonight; I think the seeing was worse than it appeared to the naked eye.)
Then, my telescope got hijacked by D, who wanted to just cruise around the Milky Way a bit. So I pointed it at Eta Carina and showed him the controls and away he went. I sat in one of the deck chairs we'd dragged out and just looked up, which was very pleasant and included seeing the Beehive, thanks to the great big pointer that is Mars.
I got a bit bored then for a bit, and was considering going inside even before the moon came up, because I hadn't planned what to look for/at. But J decided to look a the Leo Triplet again, so that was worth staying up for (much fainter than in Mansfield though), and then I realised we had the star atlas out with us when J grabbed it to find Virgo. Consequently I now know where Leo is, and I can basically figure out Virgo too. I tried to split Regulus, in Leo, but that didn't happen; I had better luck with Algieba though. Over in Virgo Porrima wasn't splitting for me, but I did manage the double in Corvus, called Algorab, which looked awesome because they both appear to be red. Nice.
Through J's scope, I saw a few of the Virgo galaxies (awfully dim, here), and a few star clusters.
Labels:
ballarat,
beehive,
double stars,
eta carina,
family,
leo,
leo triplet,
m42,
rhea,
saturn,
titan,
virgo
14 March 2010
Combing Puppis
It worked well for J having a list of Messier objects he wanted to look for, so he could mark them off. Just having the book to look at with Crux hadn't worked as well, so I chose a new constellation to check out - Puppis - and made myself a List. I ended up working on it both Friday and Saturday nights.
Puppis as a constellation was, or is, a part of a huge constellation: Argo Navis. Puppis is the stern - Carina is the keel, Vela the sails. Puppis was directly overhead on Friday and Saturday, which in theory was good because it's the best seeing but in practice made it bloody hard both to find things and then to look at them properly. It also didn't help that it's not an especially distinguished constellation; I had to keep reorienting myself with regard to Sirius and the rest of Canis Major, because I just couldn't figure it out otherwise.
I'll say up front that I didn't find everything I wanted to. Partly that was a tiredness issue - because we were doing a lot of other things, as well as observing, we weren't nearly as fresh as is optimal come dark. It was also an issue of navigation. I'm still finding this quite difficult. That most of our maps are designed for the northern hemisphere does not help; nor does the fact that the maps have different scales - often it's different for different maps in the same book - so, when you're starting out spatially challenged, it's an added degree of difficulty. Nonetheless, I did have fun, with the odd moment of frustration.
Puppis, for a scope the size of Ptolemy, is all about the double stars. So, I found and split k Puppis; 5 Puppis (a nice reddish tinge) and 2 Puppis. I don't think I found R65, which was disappointing because it's a triple. I think I found Sigma Puppis, but I'm not convinced - I saw a reddish star with what looked like a faint companion, but I'm not sure it was the right spot.
Other than those, I also found M46 and M47 all by myself (and didn't that just get a victory dance from yours truly), and another open cluster in M93. NGC2451 is yet another fairly diffuse open cluster; NGC2477, however, is a very cool, fairly faint, kind-of teardrop shaped cluster which I really liked. And found all by myself.
Again, we had friends out with us both nights; D and K, and also A&G. So we had to turn on a good show: Mars, Saturn, Orion Nebula, the Jewel Box, (I looked at all of these both nights, I think - old reliables!) and just to show off I showed what Acrux looks like as a binary. Which was fun.
J was chasing Messiers again. It was dark enough that the Large and Small Magellanic Clouds were quite obvious to the naked eye when it wasn't even what I would call especially dark, so he aimed at the Tarantula Nebula which was awesome. He found the totally amazing Leo Triplet, too - a set of three galaxies that can be seen in the same field. And we looked at the Beehive through the binoculars. Well, I tried anyway; I really am not good at holding them in place. Glasses don't help.
Again, it was an awesome weekend of viewing. We didn't stay up as late as we would if it had been a dedicated astro weekend - don't think we saw midnight either Friday or Saturday, although we did hear all of Mark Seymour's gig on Saturday! But given it was mixed with riding, and lots of food, and lots of people, I think we did well.
Labels:
2puppis,
5puppis,
acrux,
beehive,
double stars,
jewel box,
kpuppis,
leo triplet,
m42,
m46,
m47,
m93,
Mansfield,
mars,
new moon,
ngc2451,
ngc2477,
saturn,
sigma puppis,
tarantula nebula
Dinner, and a show
My darling was in a prolonged bike race in Mansfield this past weekend, so because it was also almost a new moon weekend we took the telescope(s) up with us, for a long weekend.
Wednesday night: cloudy. Bit sad, but not too much. Meant we could sleep well after our outing to the Mansfield Pub.
Thursday: was clear. Very clear. Firstly, though, we had to go and eat our way through DB's voucher for $400 at a local restaurant, won through this event last year. An entertaining night indeed. And then, out to discover just how dark it actually gets in Mansfield. Happily, we were about 1km from the main street - which was actually annoying most of the time, but did mean we were away from most of its (admittedly minimal) glow.
We'd set up the scopes before we left. To explain that plural: I have no picture yet, but J has decided that sharing with me was going to be just too annoying. Therefore he recently bought himself one: a 16" Dobsonian. If he's lucky a picture of it will appear on here at some stage. Because it's newer, and fancier, I decided it ought to be christened Copernicus...
Anyway. It was a great night for viewing. I had planned to find my way around Crux, because it's in a good spot at the moment and southwards-viewing really sucks at our place. I split Alpha Centauri for a start, which is always very satisfying. I also found the Jewel Box by myself, which is also satisfying - and is something I'm having to do all of sudden, what with J off playing with his own telescope. I split a few other doubles, too: Acrux, although I don't think I made out the triple; Gamma Crucis, and Mu Crucis. I also found the clusters NGC 4103 and 4349, and I might have found 4052 but I'm not entirely positive.
I got sick of finding brand new things after a while and swung over to the old reliable, Orion, which is sadly beginning to set awfully early these days! I split Rigel and had a look at the Nebula. Most exciting, though, was finding Mars - getting smaller - AND Saturn! Which looked totally incredible, with the rings directly across the face of the disk so it just looked like the pictures. And we think we saw Titan, too, and possibly another moon even! It was terribly exciting.
J went hunting Messier objects. Found Omega Centauri, M46 and M47 - which do look cool in the same field of view, because the former is a fuzzy blob and the latter is a loose, dense conglomeration; M50, M78, and M79 as well.
We stayed up until about midnight. We'd shared the night with D and K, for a while - they piked a lot earlier than us, but made lots of appreciative noises, especially over Saturn.
22 February 2010
Last week's observing
We had a mighty fine time last week! A whole string of clear nights; we took the 'scope out the backyard and decided to work our way around Orion and Canis Major (and a couple of other fine things).
47 Tuc, and it really was beautiful.
In Orion, I checked out Rigel - which it turns out is a double star, and I could indeed see the very faint blue companion star. I also looked at the other three corners of Orion - Betelgeuse, which was really red, and I forget the names of the other two corners. Then there's Eta Orionis, which is really a triple but only the AB pair are visible, and even then very close: they look to be touching. The Trapezium, of course, is glorious; and the nebula of M42, even from the light-polluted backyard, is always a happy-Alex-making sight.
I enjoyed looking around Canis Major. Of course, there's Sirius - almost bright enough to be blinding in the scope. The delightful H3945 is an orange and blue double, pretty widely spaced apart. But even more awesome - and perhaps my new favourite object - is Beta 324: two pairs of doubles, perpendicular to each other. They just look amazing. Then there's M41, an open cluster; c121, another cluster; NGC2362, a tight cluster with a single very bright star in the center (Tau Canis Majoris); and yet another open cluster in NGC2360.
Mars is particularly marvellous at the moment. It's still getting up a little too late for easy casual viewing, but it's getting there. It's far enough north that when we were out and looking, we had to drag Ptolemy through the entire house (the courtyard looks south) to check it out. But it was worth it: a great big red disc. Glorious.
I think that basically covers it. I was pretty out of it the first night, despite J's attempts at jollying me into it. The next few nights I got more into it, which was great.
Labels:
47Tuc,
beta 324,
betelgeuse,
c121,
canis major,
double stars,
eta orionis,
H3945,
m41,
m42,
mars,
melbourne,
ngc2360,
ngc2362,
rigel
17 January 2010
New moon weekend 1/12
NB: yes, this is several days after the weekend. Whatever. Also, I'm quite smug that I'm writing this based on notes that I wrote in the front of my Pocket Sky Atlas - the first few in the pitch black, then the others with the aid of our red light. (Have I mentioned this before? We found a red light! It looks an awful lot like a bike's rear light.)
Friday
...had us alternately groaning and gleeful, as we drove down, because the clouds built up and then disappeared several times. Early in the evening it looked like the clouds had come in... but then, by the time it was properly dark (except for the glow on the western horizon which stayed there, and so was presumably Geelong rather than the sunset) the clouds had gone and voila! for the first time in a really long time, there was the Milky Way. It was dark enough to see the Coal Sack quite clearly, next to Crux; and the Large and Small Magellanic Clouds were totally obvious. Lack of light pollution makes the most stunning amount of difference.
First, because it was there, we tried looking at Mars. Sadly, although it's at its closest for years, it was quite a small disk. Distinctly red, though. For something a bit different, we swung over to Omega Centuari: the largest globular cluster in the southern sky, I think? Pretty impressive, anyway, although I actually think not quite as good as 47Tuc, because it didn't seem to have the tendrils reaching out.
(Pause for collimation...)
On to the Carina constellation - which I still can't quite figure out, the Pocket Atlas isn't so good for that - and checked out the Eta Carina Nebula, which is enormous and has really cool dust lanes in it. The whole area around that nebula is pretty cool - heaps of stars, of course, because it's bang in the Milky Way. Then off to the Southern Pleiades, an open cluster... and I just don't find open clusters that interesting. They just look like a bunch of stars. Yes, sometimes they're in a pretty formation - I like the normal Pleiades - but... anyway. Also in this area is another, tighter cluster - IC2581. And it was more impressive, I think because the stars are closer together and there are more of them that are obviously part of the gang.
Moving on, we decided to get a bit ambitious and have another look at the Large Magellanic Cloud. I probably didn't actually spend enough time looking at it, to allow my eyes to adjust enough to pick out interesting aspects; there was too much else to look at. But I'm quite sure that the fuzzy blob - in the same place as when we looked at it in Ballarat - is the Tarantula Nebula. It's pretty awesome to have found an object in another galaxy.
Finally, to finish Friday night (by this time Saturday morning), we had a look at Alpha Centuari - split it easily (I think I'd like to start collecting double stars...), and of course it wouldn't be a complete viewing night at the moment without checking out Orion, which looked breathtakingly awesome. Of course. A final look at Eta Carina, and 12.30 on a Friday night was definitely bedtime.
Also, we saw numerous satellites.
Saturday
... was another very off&on again day, cloud-wise. We really thought we were going to get screwed over, but come 10.30 or so (and a little snooze) it had cleared enough that we bothered dragging Ptolemy onto the balcony. (Did I mention that? Observing from the balcony. None of this whole going-a-long-distance-from-the-house-or-car business for me.) We had a quick look at Eta Carina again (and aren't we glad the Atlas comes with a Greek alphabet guide, since it's a long time since I did esoteric maths), but frankly the most interesting thing about the sky was watching the clouds and general murk come... and go... and come again. I think we only stayed out for half an hour or so, because then a sky-covering cloud came in and ruined our fun. There was certainly no Mars viewing.
The one thing I was sad about? No Saturn. Rising too late, meant that it was in the murk both nights. Hopefully we get to see it over winter.
Labels:
alpha centauri,
coal sack,
collimation,
double stars,
eta carina,
forrest,
IC2581,
LMC,
m42,
mars,
milky way,
new moon,
omega centauri,
satellite,
SMC,
southern pleiades,
tarantula nebula
10 January 2010
Pity we weren't better prepared
So, when we got up here I realised that I had forgotten to bring a sky atlas. Which was pretty annoying. When it got all clear and lovely last night I pulled up Stellarium on the computer, which shows some stuff obviously, but it's not good for aiming at the sky and figuring out what to try looking at. I felt a bit guilty about wasting a lovely evening, with no moon, because we didn't stay up that late; but at the same time we hadn't really planned on a long observing session, having had a busy and tiring day already.
Anyway, we did see some cool stuff. We ticked off three new Messier objects, all open clusters: M46, M47, and M50. 46 and 47 are very close together, such that in the 35mm and 17mm they were in the same field of view. They're very different; 47 is a fairly open, brighter cluster, while 46 looked more like a globular cluster: a fuzzy patch of lots of stars. We tried finding the Cone Nebula but it was too early - it hadn't risen above the trees.
Swinging around, J did manage to find 47Tuc, which was good; and it was indeed a lovely fuzzy ball of stars, with tendrils going out faintly.
It was dark enough that I could definitely see the Large Magellanic Cloud naked-eye, and could even - after a while - fool myself that I was seeing the Small Magellanic Cloud, too. With the 35mm, we had our first real go at looking at the LMC. I have to say I didn't give it much time; I was getting tired, and the temperature had dropped surprisingly fast (which was good, after the 37C day). However, even with the brief look - and skies not that dark - I could begin to make out features. There was a bright fuzzy blob in the bottom right-hand area - which is actually top left - which looked like a globular cluster; I'm looking forward to having a look at the atlas to see if I can figure out what that is. I could also some dust lanes, I think.
Finally, we checked out Orion - this is going to be my replacement for Jupiter for the next little while, I think - and it was the best I've ever seen it. The nebulosity went on for degrees; the Trapezium was obvious; and I could even see some individual stars within the gas. M43 was obvious as a smaller nebula 'below' (above) Orion, and I'm quite sure there was some fuzziness around a star above-left (in the eyepiece; actually below-right). I must check that out, too, to see whether I'm right or if my eyes were just playing up.
In all, a good night's viewing. We also saw a satellite, which is always absurdly exciting.
08 January 2010
Haze, clarity, haze
Stinking hot day. I didn't have much hope for the evening because there was a lot of cloud just on sunset, but it did clear - mostly, anyway. In astronomical twilight, I went and set up the scope (mostly all by myself - with the new mount - dead exciting, if a bit hard); found Jupiter, but it was pretty hazy off to the west. So I saw it, and I think four moons, but it wasn't very impressive.
Next, swinging around, I tried for the Orion Nebula - and found it, but again it was just too hazy: there was no nebula! Also, still not that dark. This was a bit sad for K, who came out in the dark and mosquito-infested-ness only to see just a couple of stars.
Anyhow, went back inside for an hour or so. Then, ta da! It cleared! So out we went again. Orion, this time, looked totally spectacular - so K, and D, both got a good look, and I think they were impressed. Then around to the Pleiades, which looked pretty good. J tried to find 47Tuc, but to no avail - clouds were coming up in the west, and it wasn't quite dark enough anyway, I think.
The last thing we tried was M41, we think; it was an open cluster, and it was roughly where J was looking for it last week in Melbourne. Certainly found a cluster, anyway. By this stage the clouds were coming in, as was gauzy haze, and the mosquitoes were getting worse. So we packed it in.
05 January 2010
Mount and mosquitoes
A little while back J caved, and decided that actually he'd quite like his tripod back, and the telescope would do better on its own, proper, mount. So he ordered one, and six weeks later it finally arrived. Huge darn box for me to lug home from the post office.
There was a bit of angst over the setting up, and we're still not entirely sure it's exactly how it should be. But it's very stable, so it seems ok. And I love that there is a little tray between the legs for putting eye pieces on!
Last night, a lovely evening, we were too stuffed to take advantage of it. Tonight, there are a few clouds around; we went out for a little bit, but were soon driven inside by mozzies. Before that, we had a quick look at Jupiter - very low on the horizon and quite atmosphere-muddled. Then Orion, but really it's not dark enough yet. Finally, because I noticed in Stellarium that they were close to Orion and Sirius and therefore should be easy enough to find, J found the open clusters of M41 and M47. At that point we caved before the might of the insects and decamped inside.
I love the mount, though. It's lovely and wooden, and suits the scope far more than the grey metal of the camera tripod ever did - a very important consideration, of course.
28 December 2009
Late night Ballarat viewing
We did view briefly on the night of Boxing Day; we showed some friends the moon, and they were suitably impressed. We didn't get much more viewing in - we saw Orion, and 47 Tuc, both of which were of course awesome; but then the clouds came up.
Last night we were utterly tuckered out. We convinced ourselves there were some clouds around.
For tonight, our last with the clearer skies of the Rat, we prepared well by napping in the afternoon and not having too strenuous a day. Very important, this sort of preparation. Happily, it wasn't as cold as the last few nights; sadly, for us, the moon is enormous (86% full, according to my adorable widget) and was hanging bulbous and annoying right near the Pleiades.
Anyway, we started by looking at Jupiter - very low in the sky, in fact just about disappearing behind the roof of the house. It wasn't an awesome view, but most importantly for me I'd realised that Neptune is very close to it at the moment. We're pretty sure we found it; the blob of light certainly looked like a disk, rather than a point of light, just as Jupiter's moons (let alone Jupiter) and Mars resolve. There was no blue/green colour, because it was too low to the horizon; it was yellow/red instead. For the same reason, Jupiter was an awesome fake yellow/orange colour, although it was impossible to resolve it properly thanks to the atmospheric issues. ETA: apparently Neptune is currently mag 8, so I'm pretty pleased at finding it, it being so close to the moon and all.
Next, we tried checking out some stuff near Canis Major. First up, M41, an open cluster. I'll admit here and now that I am not usually wowed by open clusters (in my vast experience of them). This one was pretty enough... but it just looks like a particularly dense clump of stars. Which it is. Nearby, we looked at Cr121 - where Cr, according to my trusty Pocket Sky Atlas, stands for Collinder, presumably the dude who catalogued it.
Swinging around we amused ourselves looking for 47Tuc, and although the sky was still washed out it was still all tendril-y looking. Swinging back, J got a bit ambitious and tried looking for M44 - the Beehive. We didn't find it - too low, and therefore behind the trees from our position. We did find some cluster, but we have no idea whether it has an official designation.
The Orion nebula, as always, looked good - although it too was a bit washed out from the moon. Despite that I think I'm picking up new details every time; I don't remember noticing a star below the Trapezium before. And M43 looked quite obvious too. J picked up the Small Magellanic Cloud in the binocs, as well as various other bits and pieces. I had a quick look - I'm not very good with binocs, at least partly thanks to the specs - but in my wavering grip even I could see M42, vaguely, as well as a couple of the open clusters.
Finally, we wreaked vengeance by looking at the moon - remembering this time to put the neutral density filter on, although to be honest I still felt blinded. Tycho and Copernicus were both in full view, with their respective ejecta very obvious; it was a brilliant sight.
Overall, we've had good viewing up here. It's going to be weird to go home to very obvious light pollution.
Subscribe to:
Posts (Atom)