File talk:Andromeda Galaxy (with h-alpha).jpg
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upside down?
[edit]Is it both northern-hemisphere-centric and pedantic to suggest the picture is upside down? Stub Mandrel (talk) 19:27, 30 December 2014 (UTC)
H-Alpha?
[edit]Forgive my ignorance: If this image was taken in H-alpha, then why are there many different colours visible? --Fleetie (talk) 17:51, 18 September 2016 (UTC)