Celestial hemisphere:  Northern  ·  Constellation: Cepheus (Cep)
Cave Nebula or Sharpless 155, Maroun Mahfoud
Cave Nebula or Sharpless 155
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Cave Nebula or Sharpless 155

Cave Nebula or Sharpless 155, Maroun Mahfoud
Cave Nebula or Sharpless 155
Powered byPixInsight

Cave Nebula or Sharpless 155

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Description

Is a diffuse nebula in the constellation Cepheus, within a larger nebula complex containing emission, reflection, and dark nebulosity. It is widely known as the Cave Nebula, though that name was applied earlier to Ced 201, a different nebula in Cepheus. Sh2-155 is an ionized H II region with ongoing star formation activity, at an estimated distance of 725 parsecs (2400 light-years) from Earth.

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Cave Nebula or Sharpless 155, Maroun Mahfoud