Nick Hart's Astronomical Images from a light-polluted site
Monday, 5 November 2012
Bi-colour image of IC7050 The Pelican nebula
Here is an example of bi-colour imaging IC7050 The Pelican nebula taken using a focal
lenght of 640 mm. The sky conditions were very goodwith no moonlight so exposure times of
ninety minutes were used for each filter H Alpha and O111:
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