Sh2 155 "Cave" Nebula
Image Description and Details :
Sh2-155 or Sharpless 155 is a diffuse nebula in the constellation Cepheus, within a larger nebula complex containing emission, reflection, and dark nebulosity. Images showing a curved arc of emission nebulosity corresponding to a cave mouth (roughly center of image) gives rise to the popular moniker "Cave Nebula". Sh2-155 is an ionized H II region with ongoing star formation activity, at an estimated distance of 2400 light-years from Earth.
Capture info:
Location: Orion’s Belt Remote Observatory, Mayhill NM, USA
Telescope: Takahashi 180ED reflector
Mount: Paramount MX+
Camera: SBIG STXL 16200
Data: 4.75,4.25,4,4.75,4.5 hours LRGB , Ha respectively
Processing: Pixinsight
Copyright: David Doctor
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AAPOD2 Title: Sh2 155 "Cave" Nebula
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