Orpington Astronomical Society

Astronomy => Astrophotography => Topic started by: MarkS on Dec 10, 2007, 06:11:15

Title: M1 Crab Nebula from Tuesnoad
Post by: MarkS on Dec 10, 2007, 06:11:15

This is my only partway successful image from Tuesnoad - I know it could be better.  All the others were swamped in noise - I'll be coming back for some advice on them so I can learn from the failures.  Perhaps I need longer subs, for which I'll need to guide.

Tuesnoad was great fun even though very wet, windy, cold and muddy!  And the skies were terrific.  My thanks to everyone who contributed in different ways to make it so enjoyable for a newbie.

Details of image:  Canon EOS300D on a Celestron C11,  120 x 30sec unguided (=60min), stacked and cropped.

(http://homepage.ntlworld.com/the_shelleys/photos/crab.jpg)
Title: Re: M1 Crab Nebula from Tuesnoad
Post by: Fay on Dec 10, 2007, 07:52:57
Mark, you tried so hard to get this on Friday & it was well worth the effort. You have done so well & persevered. You arelike Tony, well on the way now.
Title: Re: M1 Crab Nebula from Tuesnoad
Post by: JohnP on Dec 10, 2007, 08:34:35
Mark - It was good meeting you on Friday & glad you got the cable issue sorted with your mount... Your image is very good seeing how short the subs are. I would definitely recommend going route of guiding so you can increase exposures - something like 5mins is good with the EOS for most DSO's...

Cheers,  John
Title: Re: M1 Crab Nebula from Tuesnoad
Post by: Jim on Dec 10, 2007, 08:41:32
Glad you could come Mark, if you've enjoyed what has been our wettest DSC then you'll definately enjoy the others!  I do like the picture, it's an interesting subject.
Title: Re: M1 Crab Nebula from Tuesnoad
Post by: Tony G on Dec 10, 2007, 12:36:55
Mark,
Great image and I remember you was imaging the horsehead on Saturday, and was wondering how that turned out?
Keep up the good work.

Tony G
Title: Re: M1 Crab Nebula from Tuesnoad
Post by: MarkS on Dec 10, 2007, 13:21:14

How did the Horsehead turn out?  Very badly!  It was my first ever experiment with something so faint - it was completely invisible in the telescope eyepiece so it took me quite a while even to find it.  I did 90 minutes of 30sec subs but after stacking it, the result was very noisy.  I'll post it later on in the Technical section 'cos I'm gonna a bit of advice ...