Sh2-155 aka Caldwell 9 aka
The Cave Nebula

The Cave Nebula in Cepheus
The Cave Nebula, Sh2-155 or Caldwell 9, is a dim and very diffuse
bright nebula within a larger nebula complex containing emmison,
reflection, and dark nebulosity. [Wikipedia]
Scope: Planewave 12.5" CDK
Camera: Apogee U16M w Astrodon GenII H-Alpha filter
Mount: Paramount ME guided w Astrodon MMOAG and SBIG ST-402ME
24 x 30 min
Acquired with
CCDSoft5
Darks, Flats, Alignment and Sigma Reject combine in Maxim
Further processing in PS CC
Click on the image to see it 3x this resolution and to resize it in the
browser.
Flesherton, Ontario
June 2014
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