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TEC 140 @f5.6, FLI ML8300 camera with Baader filters. Tak NJP Temma2 mount.
The Cave Nebula SH2-155. 15 hours of exposure HaLRGB. The Cave Nebula, Sh2-155 or Caldwell 9 is a very diffuse nebula within a larger nebula complex containing emission, reflection, and dark nebulosity. It is located in the constellation Cepheus. Right Ascension: 22:58 (hours : minutes) Declination: +62:34 (degrees : minutes)