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Old 31-03-2006, 12:26 AM
tornado33
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tornado33 is offline
 
Join Date: Jan 2005
Location: Newcastle, NSW, Australia
Posts: 4,116
Yes a great image. Thats the captured colour. Unmidified DSLRs shower a lighter shade but the Ha enabled cameras let in much more red light from Ionized Hydrogen in nebulae giving the pink colour from a mix of Hydrogen Alpha (red) and ionized Oxygen and Hydrogen beta (greenish) to give pink.
See spectrum here, of a deep sky filter
http://www.lumicon.com/images/deepsky_chart.jpg
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