This is NGC2997 a small galaxy in the Antlia group, located 25 Million light years away and magnitude 10. Taken over 2 nights and about 7 hours of data.
Thanks very much for all your comments, image processing is a weak point of mine, I use Astroart v5 and I still haven't used all of the features that it has.
Rick, I deliberately pumped up the blue because the galaxy looked a bit green, but I agree it does have an annoying bluish background now.
Thanks very much for all your comments, image processing is a weak point of mine, I use Astroart v5 and I still haven't used all of the features that it has.
Rick, I deliberately pumped up the blue because the galaxy looked a bit green, but I agree it does have an annoying bluish background now.
Cheers
Bill
Hi Bill,
That's a good image.
I had a little play with it in Photoshop.
I hope you don't mind.
Does this look better?
That looks good mate, as 200Kb is not much to play with, I have created a dropbox account and here is the link to the 30Mb 16bit PNG file as it came out of Astroart 5.
So if anyone else wants to have a play with the data, go for it, you may be able to tweak more information than I did.
Looks really good Allan, so much more colour in the stars compared to mine which are overcooked and turned white. I don't think you lost anything in the Galaxy structure, well I didn't notice any when blipping between the two.
I guess you did that in Photoshop is that right mate?
My son has gone back to Uni, so I'll see if he can get an Student version for me.
Looks really good Allan, so much more colour in the stars compared to mine which are overcooked and turned white. I don't think you lost anything in the Galaxy structure, well I didn't notice any when blipping between the two.
I guess you did that in Photoshop is that right mate?
My son has gone back to Uni, so I'll see if he can get an Student version for me.
Regards
Bill
Thanks Bill,
yes I used Photoshop CS5.1 & also Fitswork4 just for a "make stars smaller" pass which was blended back in 50/50.
I think it still needs work -
the background has too much colour instead of being black.
It still needs fine tuning.
I will leave that to you now you know what Photoshop can do.
I recommend Louie's videos here to assist you: https://www.youtube.com/channel/UCJ5...Ge66vsuSaXb-0A
I used lots of blurred layer masks.
I actually split the channels & had to add noise to the red & blue
amongst many other techniques.