The Cave Nebula (Sh2- 155 or Caldwell 9) is an emission nebula of the Cepheus constellation.
It is a weak light nebula and very diffuse in a greater complex of nebula containing dark emission, reflection and nebulosity. It is located in the constellation of Cepheus and is about 2400 light years from Earth.
Acquisitions with NINA
344 x 300 s i.e. 28 H40
ASKAR 400 bezel
ASI200MC
SIRIL stacking
Pixinsight and Photoshop treatment

Copyright Fred Lamagat