Celestial hemisphere:  Northern  ·  Constellation: Cepheus (Cep)  ·  Contains:  Sh2-155  ·  VdB155
Caldwell 9, The Cave Nebula in HaRGB, Scott
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Caldwell 9, The Cave Nebula in HaRGB

Caldwell 9, The Cave Nebula in HaRGB, Scott
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Caldwell 9, The Cave Nebula in HaRGB

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I have added 1.5 hours of RGB to my previous Ha effort. One thing for sure is that this is a tough target to image. I feel that another 3 or 4 hours might yield something acceptable. Thanks for looking.

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Caldwell 9, The Cave Nebula in HaRGB, Scott

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Nebula