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Coathanger Asterism - Collinder 399

Started by MarkS, Sep 22, 2013, 19:18:50

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MarkS

I've now added the rest of the data into this and completely reprocessed
(the original quick attempt at processing was here: http://forum.orpington-astronomy.org.uk/index.php?topic=9264.0)

H-alpha modified Canon 350D (now with mirror removed!) on Tak Epsilon 180ED with IDAS LP2 filter.  46 x 5min subs at ISO 800.
Taken over 3 nights during the week 2-7 September.



I was very happy to get star colours in the cluster NGC 6802 - just to the right. 

The small version above does not do it justice, so please take a look at the larger version:
http://www.markshelley.co.uk/Astronomy/2013/coathanger07092013.jpg

Mark


mickw

Very nice Mark and it looks like the mirror removal has removed the squiffy diffraction spikes that you were getting.
Growing Old is mandatory - Growing Up is optional

Fay

Lovely capture Mark, great colours
It is healthier to be mutton dressed as lamb, than mutton dressed as mutton!

Mike

Fantastic Mark. Best image of the Coathanger I have ever seen.
We live in a society exquisitely dependent on science and technology, in which hardly anyone knows anything about science and technology. Carl Sagan

julian


The Thing

Now I know where to put my coat when visiting! I love the way you get the star scaling right. Lovely.

RobertM

Nice one Mark,

It's a difficult field to process and colour balance but you've done a grand job !  Hopefully Mike will use this image rather than my embarrassing attempt in future :)

JohnP

Really nice Mark - top notch result - John

Tony G

Great image Mark........do you do it mono as well.  ;)

Tony G
"I'm normally not a praying man, but if you're up there, please save me Superman." - Homer Simpson