Celestial hemisphere:  Northern  ·  Constellation: Cepheus (Cep)
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Sh2-155 (Cave Nebula), Armin Unterwandling
Sh2-155 (Cave Nebula)
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Sh2-155 (Cave Nebula)

Getting plate-solving status, please wait...
Sh2-155 (Cave Nebula), Armin Unterwandling
Sh2-155 (Cave Nebula)
Powered byPixInsight

Sh2-155 (Cave Nebula)

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Description

Sh2-155 is a bright H-II region of a major nebula complex consisting of emission nebulae, stretching over the constellation Cepheus.
The nebula, about 2400 light-years away, is an active star-forming region. Young stars of the OB3 asterism are responsible for the ionization of the gas.
Radiation from the hot O-type star HD 217086 is thought to be compressing gas in the region, triggering new star formation.

Comments

Revisions

  • Sh2-155 (Cave Nebula), Armin Unterwandling
    Original
  • Sh2-155 (Cave Nebula), Armin Unterwandling
    D
  • Final
    Sh2-155 (Cave Nebula), Armin Unterwandling
    E

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Sh2-155 (Cave Nebula), Armin Unterwandling