Orpington Astronomical Society

Astronomy => Astrophotography => Topic started by: Whitters on Dec 31, 2008, 22:16:20

Title: M81
Post by: Whitters on Dec 31, 2008, 22:16:20
M81 & UGC5336 visible at 6 O'Clock
WO 110mm f6.5, Starlight Xpress MX916, Astronomix IR Block
28th December 2008 01:26 and 29th December 2008 23:20
6 Hours 20 minutes (19x20 minute subs taken over two nights)
Curves and levels applied, Gausian Blurr to smooth background unsharp mask applied to bright regions

(http://www.axqo90.dsl.pipex.com/astro_images/2008/29_Dec_2008/M81-SigmaClip.png)
Title: Re: M81
Post by: Carole on Jan 01, 2009, 11:21:50
Beautiful.  I love this galaxy, makes such a fabulous image.

Carole
Title: Re: M81
Post by: Rocket Pooch on Jan 01, 2009, 12:06:44
Good image Paul, nice dark sky as well, not can we have some of that clear weather here?
Title: Re: M81
Post by: RobertM on Jan 01, 2009, 21:17:03
Very nice Paul, that's a lot of work to put in and it's taken the 20min subframes well.  The background looks quite black (at least on my monitor), I know it's a jpeg but would lightening it a tad show more faint structure just a thought!
Title: Re: M81
Post by: Fay on Jan 02, 2009, 09:35:28
Wow, Paul, you are really coming on a lick with your subs!!!!!!!
Title: Re: M81
Post by: Whitters on Jan 02, 2009, 13:59:13
Hi Rob, I'll have a go, I set it up on a laptop screen, I'll have another go on a CRT