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Old 01-06-2008, 02:21 PM
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winensky
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NGC 5826 and 4945 in Centaurus

Its been a while but clear skys and a free night have finally coincided.

NGC 5826 is a small GC in Centaurus. At a distance of 40,000ly it has a magnitude of 9.3. The foreground star is M Centaurus or HD119831. It is a G class star at mag. 4.6, and 180ly away. L 20x30s RGB 20X20s

NGC 4945 is a lovely barred spiral in Centaurus at mag 9.3 and a distance of 11.7mly. It is classified as a Seyfert type 2 due to unusually energetic core X-ray emissions. This is the result of a quick test series and I hope to get back and shoot this properly LRGB this week. Luminance only 15x1min subs.

All images stacked in MaximDL and clened up in Photoshop.
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Old 01-06-2008, 05:36 PM
jase (Jason)
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Matt, in both images the data is black clipped. i.e. the black point has been set too high and as such you've lost some valuable data. Once you've overcome this, you should be able to extract the most from your images. Keep at it.
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Old 01-06-2008, 10:45 PM
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Thanks for the feed back. I will try to watch out for this
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Old 02-06-2008, 04:56 AM
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iceman (Mike)
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Hi Matt
Another nice couple of images. I like 4945 the best.

Re black clipping, agree with Jase. Perhaps you could post some of your unprocessed (just aligned/stacked) images and we can have a look and maybe a play with those?
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Old 02-06-2008, 09:34 AM
Zuts
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Hi Matt,

A top galaxy image, the detail is very good.

Paul
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