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Old 06-09-2011, 02:30 PM
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sjastro
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Imaging challenge:- BBWo 147 Planetary Nebula?

Also known as Bran 147 A/B, I imaged this a while back but was not satisfied with the final image.
This one is far superior as it reveals more than the lobes.

Astronomers are uncertain if it is a planetary nebula.

This is one extremely faint object, the V magnitude surface brightness is fainter than the naturally occurring skyglow at a dark site. The R magnitude surface brightness however is slightly brighter.

8.5 hrs L=R, 1 hr R, 1 hr G, 1 hr B, BRC-250 scope, ST-10XME CCD.

http://users.westconnect.com.au/~sjastro/bran147c.html

Clear skies

Steven
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