Celestial hemisphere:  Northern  ·  Constellation: Cassiopeia (Cas)  ·  Contains:  Bubble nebula  ·  NGC 7635
Bubble Nebula Caldwell 11, cgordo5
Bubble Nebula Caldwell 11
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Bubble Nebula Caldwell 11

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Description

The Bubble Nebula is a stack of 128 frames of 300 secs each for a total exposure of about 10 hours 20 minutes at ISO 2000. Also 56 dark frames, 130 flat frames, 128 dark flat frames, and 55 bias frames. I used my unmodified Nikon D300. Unfortunately, the infrared filter in the D300 cuts out a lot of nebulosity. I guess I'll have to save my pennies for a real astro camera to be able to do any better.

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Bubble Nebula Caldwell 11, cgordo5