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View Full Version here: : Helix Nebula, Repro


DJT
26-08-2015, 10:20 PM
Quick update after yesterdays post.

NGC7293 Bicolour Helix Nebula (http://astrob.in/205982/0/)

In all there is about 9 hours of data, split fairly evenly between Oiii and Ha captured between last year and this year.

In this version I added HA into the Oiii for Green and blue to get more detail and backed off on noise reduction. Then there may have been a bit of fiddling about with curves :-)

I cropped heavily. Whilst I have captured the outer areas I wanted to compose this with the focus on the core of the planetary neb. It stood up to the crop quite well.

Thanks for looking. Time to move on

batema
26-08-2015, 11:39 PM
A lovely image David. It is amazing the difference between the structure of the Ha data and the oxygen data. I didn't even think to look at that until i read your previous post. Great work.

Mark.

RickS
27-08-2015, 07:32 PM
Nice colour palette, David.