Quote:
Originally Posted by alpal
Hi Colin,
Yes - the data is very good & it's there waiting for a possible reprocess at any time.
Every time I post a picture here I end up posting a revision.
There are so many variables.
You could even try stacking with 2x or 3x drizzle to see if you could get any more resolution out of it?
I think the colours look better now too.
Remember I only did a quick job & used a blurred layer mask on just the galaxy.
cheers
Allan
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You've shown me that I do need a reprocess from scratch, got the colour peaks right in the histogram to begin with but still not quite right
Not sure if I can get more resolution out of it as the seeing was pretty bad and I'm already looking at a high FWHM.
All I did was a star mask and played with the blue channel.
Quote:
Originally Posted by traveller
Great image Colin, and Al did a great job too.
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Alan did show its potential
Quote:
Originally Posted by gregbradley
A very pleasing image of NGC253. Opinions can sometimes differ about the correct colour for this galaxy. I go with the outer ring are being quite blue and yellows and browns for the core like almost every other galaxy.
So that would mean you are lacking some blue in the outer spiral arms.
Greg.
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I had a look back at my first attempt at it with my previous setup (first galaxy shot) and it was a lot more blue. Got that wrong somewhere along the way.
http://www.astrobin.com/full/287438/B/
Still begging for a complete reprocess which I'll get around to at some point