Astronomy Page 9

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  • DaM 15 Feb 2013 23:10:26 13,225 posts
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    Chopsen wrote:
    My sky was clouded over in the end. Ho-hum. British weather, don't you love it.
    Have you not noticed, any vaguely interesting astronomical event in the UK virtually guarantees cloudy skies?
  • RyanDS 15 Feb 2013 23:17:35 9,377 posts
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    In 4 years I've made one decent meteor shower.

    Fucking clouds.
  • ReGuRgIt8oR 16 Feb 2013 10:20:03 2,602 posts
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    Chopsen wrote:
    The best I've got is a 32mm plossl. My plan is to aim my dob at Ursa Major when it's due to cross it at 2130 or so and hope!
    That was my exact plan (with my Newt Reflect) but I didn't see anything. I'm a noob though so it didn't surprise me to "miss" it.

    Had a good noob moment though as I tried to star hop my scope along the stars of Ursa Major to settle my aim on the 4th star (starting at the first star of the "handle" ) and I struggled as my scope picked out so many extra stars that I couldn't see myself so I kept getting lost. Where did all those extra stars come from ?

    ;)

    Edited by ReGuRgIt8oR at 10:21:17 16-02-2013
  • ReGuRgIt8oR 19 Feb 2013 21:49:13 2,602 posts
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    My first attempt at Astrophotography

    Jupiter

    Didn't have long to work on it but was keen to try out my newly modded webcam before the clouds rolled in.
    Mainly just pleased to have not ruined my webcam. Now need to play with camera settings, I found exposure to be very hard to get right.
  • Chopsen 19 Feb 2013 21:54:58 15,999 posts
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    Which camera are you using? Are you capturing as AVI?
  • EMarkM 19 Feb 2013 22:02:35 3,174 posts
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    Nice shot. Still haven't combined my two passions of astronomy and photography, even after all these decades...
  • ZuluHero 19 Feb 2013 22:08:12 4,163 posts
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    That's lovely, you can even see what it's supposed to be, which is great for a photograph ;)
  • Deleted user 19 February 2013 22:15:32
    ReGuRgIt8oR wrote:
    My first attempt at Astrophotography

    Jupiter

    Didn't have long to work on it but was keen to try out my newly modded webcam before the clouds rolled in.
    Mainly just pleased to have not ruined my webcam. Now need to play with camera settings, I found exposure to be very hard to get right.
    That's brilliant. I've been getting more into astronomy of recent, I'd love to get some decent gear (or any gear) that would enable me to see more of what's up there.
  • ReGuRgIt8oR 19 Feb 2013 22:17:53 2,602 posts
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    Chopsen wrote:
    Which camera are you using? Are you capturing as AVI?
    A Microsoft LifeCam Cinema (I happened to have a spare one and then discovered its a popular model to mod). Stripped it down to bare bones and fitted into a custom made eyepiece adapter thingy that's being sold on Internet. All quite easy tbh.

    Recorded as avi and then grabbed a still. Not tried the image stacking idea yet.

    All done with a manual mount too - am pondering buying a dual motor upgrade kit which should make this a lot less stressful.
  • Chopsen 19 Feb 2013 22:19:40 15,999 posts
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    Oooh, do stacking! It's magic! I grabbed some stuff that looked well ropey but I fed it through registax and it looked so much better. If that's just a single framegrab your end results should look awesome!

    Edited by Chopsen at 22:20:24 19-02-2013
  • Chopsen 19 Feb 2013 22:21:39 15,999 posts
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    How big is the avi? Can you put that on dropbox?
  • ReGuRgIt8oR 19 Feb 2013 22:32:16 2,602 posts
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    I assume that my avi wouldn't be suitable for stacking ( not that I know anything about stacking yet ). I assume you use a video of a reasonably static object for it. As I'm on a manual mount I'm tracking objects by hand so in this case Jupiter was whizzing across my screen and then I'd have to adjust my err adjusters to drag it back into frame. Also this meant that Jupiter was out of focus/exposure for 99% of the video and the image linked to above was the best still I could freeze frame on.

    Hope that makes sense.

    Anyone know how accurate motor upgrades are ? Just thinking of dual motor rather than full Goto.
  • Chopsen 19 Feb 2013 22:40:07 15,999 posts
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    Ah, I see. Yeah, that probably would not work out so well. However, registax I think has a in-built function to ignore crap frames. I'd give it a go anyway, what have you got to lose?

    What kind of mount do you have at the moment? A manual EQ mount?
  • Bremenacht 19 Feb 2013 22:46:45 18,275 posts
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    That's a nice picture!

    I've heard of stacking - is it where you overlay lots of frames and your pooter interpolates an image?

    ed. nm - I'll wiki it.

    Edited by Bremenacht at 22:47:05 19-02-2013
  • ReGuRgIt8oR 19 Feb 2013 22:48:57 2,602 posts
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    Yes it's an EQ5 manual mount. Can get a dual motor upgrade for approx 100 so I fancy giving it a go. Full Goto is about 320 though. My OTA is an 8" Newtonian.
  • ReGuRgIt8oR 19 Feb 2013 22:53:25 2,602 posts
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    Just remembered that I've done some astro before without really realising it ( and before my scope acquisition ).

    Lunar Eclipse

    Taken 5 years ago with my DSLR on a tripod.
  • Chopsen 19 Feb 2013 22:54:52 15,999 posts
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    I wouldn't bother with Goto tbh. I've got on a 8" Newtonian on a skywatcher HEQ5. I never use the goto any more, but the tracking is brilliant. For goto to work you have to spend ages sorting out the alignment. I like to rotate the scope to get the eyepiece in a better position and no matter how careful I am, that *always* ruins the GOTO alignment, which is rarely any good anway. The tracking alignment stay though obviously as you're still polar aligned.

    Don't get the goto and spend the saving on a decent wide angle eyepiece!

    Edited by Chopsen at 22:55:06 19-02-2013
  • Chopsen 19 Feb 2013 22:59:22 15,999 posts
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    You should head over to stargazer's lounge if you haven't already. Loads of advice there and plenty of people are ready to give equipment advice. I could have saved a fortune over the years if I listened to people there.
  • ReGuRgIt8oR 19 Feb 2013 23:14:32 2,602 posts
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    Thanks. I've browsed Stargazers Lounge and a few others. Not seen too many comments either way on dual motor upgrades. Most common opinion seems to be sell the EQ5 and buy a HEQ5 with Goto.

    I'm getting close to making a decision though - motor upgrade is sat in my basket.
  • FWB 19 Feb 2013 23:16:35 44,583 posts
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    That is pretty cool, reg. nice.
  • Khanivor 20 Feb 2013 00:26:02 40,772 posts
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    So you got a cool image like that from just a webcam, eyepiece and mount, or is there other gubbins involved?
  • Chopsen 20 Feb 2013 00:43:57 15,999 posts
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    You need a telescope as well, but the mount is most important. You want something that will keep the planet in viewlong enough to get a decent amount of data. So you need something that tracks an object while it moves. For planets, it's usually recorded as a avi on a web-cam, and for DSOs it's usually a SLR with an adaptor.

    Most of the clever stuff is done on a PC after. The camera is just a data collection device.

    Here's a jupiter I did just over a year ago, btw:

    https://dl.dropbox.com/u/6959396/jupiter_30-9-11.jpg

    It's too noisy, and I need to reprocess the data (or collect new data!) and it's probably upside down. But hey ho!

    Edited by Chopsen at 00:46:03 20-02-2013
  • Khanivor 20 Feb 2013 00:51:48 40,772 posts
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    You need a telescope too? Fuck that noise@!
  • ReGuRgIt8oR 20 Feb 2013 05:39:37 2,602 posts
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    Very nice pic Chopsen. Gives me something to aim for.

    I've ordered the motor upgrade.
  • Bremenacht 8 Mar 2013 15:38:57 18,275 posts
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    Pan-Starrs in the news. I am not excited 'cos

    - shitty fucking weather. I'll not see it - guaranteed.
    - bigger comet later in the year

    Do post if you're blessed with clear skies and a view though.
  • ecureuil 8 Mar 2013 15:41:27 76,814 posts
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    There's got to be at least one night where we'll get a clear sky, right?
  • Bremenacht 8 Mar 2013 15:49:23 18,275 posts
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    Probably those nights when I'm too engrossed in Demon's Souls or Civ V to notice. :(
  • Bremenacht 13 Mar 2013 17:28:46 18,275 posts
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    Clear(ish) skies! Look out your windows!

    Not yet though, another half hour or so 'til the sun dips.
  • Bremenacht 13 Mar 2013 18:12:37 18,275 posts
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    Ahh still too hazy. And bright.

    UK? Can you see the Moon in the western sky? It's a sliver of a thing. It'll be about half way between the Moon and where the Sun went down in about 10 15 mins.

    Or it won't, 'cos it's still too hazy & bright.

    Edited by Bremenacht at 18:14:04 13-03-2013
  • Bremenacht 13 Mar 2013 19:13:53 18,275 posts
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    Haha! I can see it! Even through the haze! Tail(s) and all! Woooooo!
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