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- Tue Nov 09, 2010 6:52 pm
- Forum: The Observation Deck: Latest Sky Photography
- Topic: Recent Submissions: 2010 November 8-10
- Replies: 26
- Views: 7525
Re: Recent Submissions: 2010 November 8-10
Here is an image of the Andromeda Galaxy gathering more than 70 hours of exposure time in Narrowband and wideband filters. To reveal the faint narrowband nebulae a flux subtration was used to remove star flux from the galaxy halo. In the centre of the galaxy lies a giant H-alpha spiral that has an i...