"I did some extra colour work on the colour of the galaxy and some more star work. Also reduced the amount of background noise reduction so its less smooth."
I've always thought his galaxy was one of the prettiest in the Southern Hemisphere.
Not often imaged, it is a bit dim compared to other more popular galaxies.
I took this one last night at my home observatory.
Planewave CDK17, FLI Proline 16803, Astrodon Gen 11 filters, Paramount ME.
Sydney had about 3 clear nights this week with no moon - quite a rare event lately.
Nice, there is plenty of soft detail in the outer arms, good separation of color between the Ha areas and the blue star regions... Plus if I'm not mistaken a hint of galactic cirrus in the foreground.
Just a couple of observations Greg. Your stars are not well aligned with the blue channel being down to the lower right hand side. This has also worsened the look of the stars on the right hand side of the image which look quite elongated.
I think if you did a realign your image would be sharper still and the stars would look pretty good.
Thanks Louie. I added some extra contrast and it did improve it.
Quote:
Originally Posted by Alchemy
Nice, there is plenty of soft detail in the outer arms, good separation of color between the Ha areas and the blue star regions... Plus if I'm not mistaken a hint of galactic cirrus in the foreground.
Thanks for that.
May well be some cirrus.
Quote:
Originally Posted by Paul Haese
Great colour and interesting target.
Just a couple of observations Greg. Your stars are not well aligned with the blue channel being down to the lower right hand side. This has also worsened the look of the stars on the right hand side of the image which look quite elongated.
I think if you did a realign your image would be sharper still and the stars would look pretty good.
Thanks Paul.
Good catch, I looked over the data again and the problem is in the Luminance data. Half the subs have some elongated stars the other half do not. I am in the process of redoing PEC for the mount and it could do with it at times. I think the polar alignment also needs a slight tweak. The RGB subs look fine but then 2x2 binning tends to round out stars anyway. I like this image a lot so I'll shoot some more luminance and maybe RGB after the PEC is redone and more polar alignment.
The other alternative is to redo the image with half of the luminance but that would be a waste. I've repaired the stars about as much as I can so its less obvious. Overall I think this about as good as I'm going to get this one without shooting more data which I will.
Quote:
Originally Posted by mill
Looking good from here Greg
Thanks very much.
Quote:
Originally Posted by CoolhandJo
Nice natural colours
Thanks for that. Colour is always a hard thing and its good to know they turned out OK.
Quote:
Originally Posted by Ken
That is a pretty Galaxy, well done. Must add this to my to do list.
Clear skies Ken.
Thanks Ken. Yes it is in a good position at the moment.
Some issues that have already been pointed out and for me the background looks a little flat and the blue a little turquoise, what do you think? Once again however, the image scale is marvellous and the potential huge .
The imaging session for my 2997 started with the mercury just under 29C and I could only juuuust reach -30C but seems I missed the super hot night (I was on a cruise at sea!) Lucky we have FLI cameras huh?
Great image Greg, a first look for me!
Really inspriational stuff.
Darren
Thanks Darren.
Quote:
Originally Posted by strongmanmike
Hey, great minds think alike
Nice result Greg, a great galaxy huh?
Some issues that have already been pointed out and for me the background looks a little flat and the blue a little turquoise, what do you think? Once again however, the image scale is marvellous and the potential huge .
The imaging session for my 2997 started with the mercury just under 29C and I could only juuuust reach -30C but seems I missed the super hot night (I was on a cruise at sea!) Lucky we have FLI cameras huh?
Mike
I always was impressed by this one. A tough target as it is small and dimmer than many other southern galaxies.
Not sure about the turquoise. There aren't many other images around but Daniel V's one is a similar colour. Background is a bit smooth. Noise control may have been a tad too much.
Another version will be on its way with another clear night so I'll leave it til then. I was getting -25C on the super hot night and left it there this night.
Taking a leaf from Mike's book I have also added a closeup of the core details of Galaxy NGC2997. Its quite interesting that there seems to be several bright points there in the core.
Taking a leaf from Mike's book I have also added a closeup of the core details of Galaxy NGC2997. Its quite interesting that there seems to be several bright points there in the core.
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