Orpington Astronomical Society

Astronomy => Astrophotography => Topic started by: RobertM on Oct 07, 2008, 19:09:32

Title: Iris under a full moon
Post by: RobertM on Oct 07, 2008, 19:09:32
The Iris Nebula in LRGB

Composed of :

35 x 5minute Luminance
5 x 5 minute R + G + B (misaligned with luminance)

I always wanted to do this but the attempt was rather hampered by a full moon so all the frames, especially the luminance, were washed out with noise.  I managed to process all but about 10 subs and the result though far from ideal didn't turn out too bad considering.  This has been by far the most difficult image I have ever processed and I'm not sure I've got there yet either.

(http://farm4.static.flickr.com/3092/2922430060_5b38c28563_o.jpg)

Title: Re: Iris under a full moon
Post by: Mike on Oct 07, 2008, 19:24:20
Robert that is superb. The Iris is one of my favourite nebula and that is one of the best pics of it I have seen. Sure it is noisy but the details is excellent.
Title: Re: Iris under a full moon
Post by: MarkS on Oct 07, 2008, 19:34:30

Robert,

It's a lovely image of a fantastic object.  But it does look a bit on the grey side.

It's quite a feat to capture it during a full moon - you must be mad!

Mark
Title: Re: Iris under a full moon
Post by: JohnP on Oct 07, 2008, 20:19:45
That is great Robert. This was on my list for Les Granges but I never got around to doing it :-( John
Title: Re: Iris under a full moon
Post by: Fay on Oct 07, 2008, 20:21:04
You have done well there Robert, with the bad conditions.
Title: Re: Iris under a full moon
Post by: RobertM on Oct 07, 2008, 20:26:36
Ok, call this Mk1 - I'll sort out the problems and report.

Mark, Mad - no :twisted: , blinkered - maybe