SH2-155, also known as the Cave Nebula

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S 155, also known as the Cave Nebula, Sh2-155 or Caldwell 9, is a dim and very diffuse nebula within a larger nebula complex.

A Quick look at the Cave Nebula in Ha 17×1800″

moonrocksastro.com/index.php/astro-blog/

Frames: 17×1800″

Integration: 8.5 hours

Avg. Moon age: 16.49 days

Avg. Moon phase: 96.68%

RA center: 344.603 degrees

DEC center: 62.742 degrees

Pixel scale: 2.933 arcsec/pixel

Orientation: 179.445 degrees

Field radius: 1.668 degrees

Locations: Home observatory, Valencia, Spain

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