Orpington Astronomical Society

Astronomy => Astrophotography => Topic started by: MarkS on Jun 08, 2011, 22:56:55

Title: Gamma Cygni - work in progress
Post by: MarkS on Jun 08, 2011, 22:56:55

Gamma Cygni and surrounding nebulosity from last night.
21 x 5min modified Canon EOS 350D on Tak Epsilon 180ED with CLS filter
The sky was good - Milky Way was quite clear and was still just visible down to 10 degrees above the South horizon.

This is a just a very quick pre-process to decide whether or not to take more subs.
(http://www.markshelley.co.uk/Astronomy/2011/gammacygni07062011small.jpg)

A bigger version (but not full size) here:
http://www.markshelley.co.uk/Astronomy/2011/gammacygni07062011.jpg

Mark
Title: Re: Gamma Cygni - work in progress
Post by: Fay on Jun 08, 2011, 23:13:16
Good as usual Mark!!
Title: Re: Gamma Cygni - work in progress
Post by: Carole on Jun 08, 2011, 23:45:42
Don't know this area Mark, but looks stunning.  If this is quick pre-process, what will the final job look like??

Carole
Title: Re: Gamma Cygni - work in progress
Post by: MarkS on Jun 09, 2011, 07:40:16
Quote from: Carole
Don't know this area Mark, but looks stunning.

Carole,

It's the same region of sky as Fay's recent IC1318.  Sometimes also known as the Butterfly Nebula.

Mark
Title: Re: Gamma Cygni - work in progress
Post by: Fay on Jun 09, 2011, 07:53:36
I can't believe it is only a work in progress!!!!
Title: Re: Gamma Cygni - work in progress
Post by: RobertM on Jun 09, 2011, 08:15:51
Great result Mark as usual.  I must admit I'm surprised that you're using a CLS filter with skies like that.

I'm looking forward to seeing the final result.

Robert
Title: Re: Gamma Cygni - work in progress
Post by: Carole on Jun 09, 2011, 08:37:58
QuoteIt's the same region of sky as Fay's recent IC1318
Ah yes, looks so different in colour and slightly different FOV.

Carole
Title: Re: Gamma Cygni - work in progress
Post by: JohnP on Jun 09, 2011, 08:38:25
As usual Mark looking very good indeed. I am loving the colours. The image scale & FOV looks almost identical with Fay's. It would be really interesting to try & combine your data with her Ha data to see what evolves.... :-)

Really good as usual,

John.
Title: Re: Gamma Cygni - work in progress
Post by: Fay on Jun 09, 2011, 08:42:08
I think I will hook the Canon up with the lens & see what I get. It is such a massive area
Title: Re: Gamma Cygni - work in progress
Post by: mickw on Jun 09, 2011, 09:33:00
Mark, yes, more subs, get on with it  ;)

Very nice, is this destined to be one of your 8 hour projects ?
Title: Re: Gamma Cygni - work in progress
Post by: MarkS on Jun 09, 2011, 10:44:01
Quote from: mickw
Very nice, is this destined to be one of your 8 hour projects ?

I may return to it sometime.  But last night I was imaging something completely different.  But I fell asleep at 12:30 am and didn't re-awaken until 3:30am - luckily the scope didn't collide with the mount.
Title: Re: Gamma Cygni - work in progress
Post by: mickw on Jun 09, 2011, 10:47:30
QuoteBut I fell asleep at 12:30 am

All that country living is turning you soft  :lol:
Title: Re: Gamma Cygni - work in progress
Post by: MarkS on Jun 13, 2011, 23:01:30

Here's a re-process - see what you think:

(http://www.markshelley.co.uk/Astronomy/2011/gammacygni07062011v2_small.jpg)

Larger version here:  http://www.markshelley.co.uk/Astronomy/2011/gammacygni07062011v2.jpg

Mark
Title: Re: Gamma Cygni - work in progress
Post by: mickw on Jun 13, 2011, 23:26:15
I prefer the colours of the reprocess, but it looks like you're picking up some dark halos round the larger stars.

My apologies - Eyes appear to be working correctly now  :oops:
Title: Re: Gamma Cygni - work in progress
Post by: Fay on Jun 14, 2011, 07:35:09
I can't see any halos
Title: Re: Gamma Cygni - work in progress
Post by: MarkS on Jun 14, 2011, 07:46:01

If there are any darks haloes, they are very subtle ones.  However, I do have distorted stars on the left hand side and on the right hand side - I need to spend some time recollimating the scope.

Mark
Title: Re: Gamma Cygni - work in progress
Post by: MarkS on Jun 16, 2011, 06:46:51
Version 3: A slightly darker version but the bright stars are better controlled.
http://www.markshelley.co.uk/Astronomy/2011/gammacygni07062011v3.jpg (http://www.markshelley.co.uk/Astronomy/2011/gammacygni07062011v3.jpg)

Mark
Title: Re: Gamma Cygni - work in progress
Post by: JohnP on Jun 16, 2011, 08:10:35
Very nice Mark - am loving it... John