Thread: Centaurus A
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Old 11-03-2013, 12:43 PM
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Scorpius51 (John)
Star stuff observer!

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Join Date: Sep 2009
Location: Canberra
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Quote:
Originally Posted by alexV View Post
Can I ask you how come all stars are white
It almost looks like they were added after the shot was taken

But the galaxie looks awesome

Alex
As the stars are point sources, they are easily over-exposed in the original images (and in any subsequent stacking, but this is presumably not stacked). There is also evidence of motion or tracking error in the slightly oval-shaped stars. Focus may also be an issue. These will usually cause the blobby effect.

The galaxy, as an extended source, is not as noticeably affected by these artifacts.

Not too shabby though, I'd be very happy with that! Well done.

Last edited by Scorpius51; 11-03-2013 at 08:32 PM.
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