Orpington Astronomical Society

Astronomy => Astrophotography => Topic started by: RobertM on Mar 25, 2013, 22:25:55

Title: M97 in False colour HaOIIIOIII
Post by: RobertM on Mar 25, 2013, 22:25:55
This one is a bit noisy as there were only 3 Ha subs and there was a lot of high cloud during the OIII capture to.

SXVR-H693 binned 2x2 and 5nm Ha and 3nm OIII filters on a GSO 8" RC operating at f/8.  I've processed it in an attempt to bring out the very faint second ghost OIII ring but not very successfully.

(http://farm9.staticflickr.com/8526/8589897439_ecec7023f7_o.jpg)

Taken on a couple of days during Feb.

Robert
Title: Re: M97 in False colour HaOIIIOIII
Post by: MarkS on Mar 25, 2013, 22:36:21

Nice owl!

Do you mean a SXVR-H694?

Didn't realise there were any clear skies in Feb!

Mark
Title: Re: M97 in False colour HaOIIIOIII
Post by: JohnP on Mar 26, 2013, 08:00:51
Very nice Robert especially for such short integration. Great scale as well.. Excellent - John
Title: Re: M97 in False colour HaOIIIOIII
Post by: RobertM on Mar 27, 2013, 18:16:01
Mark, yes it was a H694 also I didn't say there were any clear skies but in desperation I felt I had to do something !

John, thanks for the kind words.  I think it was just postable, most of the individual subs were unusable due to the crappy skies.  There also seems to be some light leak which shows when extreme stretching is applied so its not been processed as I would like.

Robert

Title: Re: M97 in False colour HaOIIIOIII
Post by: Jim on Mar 27, 2013, 18:54:14
Good image Robert. Nice to see someone doing something! What was the total exposure in each filter?
Title: Re: M97 in False colour HaOIIIOIII
Post by: Fay on Mar 27, 2013, 21:45:56
That looks good Robert. nice and  large, you usually only see it quite small