ASTRO: NGC 6894

NGC 6894 is usually displayed red. For some reason unknown to me it came out
rather blue in my image. I turned the levers quite a bit to make it look
more red, but colour looks a bit strange now.
Anyway, it is an interesting object even with questionable colour.

Taken from the middle of Berlin with a Meade 10" ACF at 1960mm focal length
on a G11 mount, SXV-H9 camera, 4x10minutes blue, 5x10m green, 6x10m red and
5x10m luminance (Baader LRGB Filters).

http://ccd-astronomy.de/temp4/6894colourgut.jpg

Stefan

On 8/30/2010 3:38 PM, Stefan Lilge wrote:
NGC 6894 is usually displayed red. For some reason unknown to me it came out
rather blue in my image. I turned the levers quite a bit to make it look
more red, but colour looks a bit strange now.
Anyway, it is an interesting object even with questionable colour.

Taken from the middle of Berlin with a Meade 10" ACF at 1960mm focal length
on a G11 mount, SXV-H9 camera, 4x10minutes blue, 5x10m green, 6x10m red and
5x10m luminance (Baader LRGB Filters).

http://ccd-astronomy.de/temp4/6894colourgut.jpg

Stefan


You certainly got a lot better resolution than I did in my shot but red
seems weak as you say. I wonder if compensating for a red gradient
knocked out the red. My G2V balanced image is at
http://www.spacebanter.com/attachmen...tid=2200&stc=1
Combine my color and your resolution?

Rick

--
Correct domain name is arvig and it is net not com. Prefix is correct.
Third character is a zero rather than a capital "Oh".

Like the faint outer shell and the interior detail.

On Mon, 30 Aug 2010 22:38:59 +0200, "Stefan Lilge"
wrote:

NGC 6894 is usually displayed red. For some reason unknown to me it came out
rather blue in my image. I turned the levers quite a bit to make it look
more red, but colour looks a bit strange now.
Anyway, it is an interesting object even with questionable colour.

Taken from the middle of Berlin with a Meade 10" ACF at 1960mm focal length
on a G11 mount, SXV-H9 camera, 4x10minutes blue, 5x10m green, 6x10m red and
5x10m luminance (Baader LRGB Filters).

http://ccd-astronomy.de/temp4/6894colourgut.jpg

Stefan