Alhena Gamma Geminorum

Stellar classification



  • X 32
  • Y 10
  • Z -104
→ Sol: 109

Object type

  • Spectroscopic binary
  • Star
  • Double or multiple star
  • Star in double system
  • Infra-Red source
  • UV-emission source
  • X-ray source
simbad:* gam Gem


Gamma Geminorum (γ Geminorum, abbreviated Gamma Gem, γ Gem), also named Alhena, is the third-brightest star in the constellation of Gemini. It has an apparent visual magnitude of 1.9, making it easily visible to the naked eye even in urban regions. Based upon parallax measurements with the Hipparcos satellite, it is located at a distance of roughly 109 light-years (33 parsecs) from the Sun.

This article uses material from the Wikipedia article "Gamma Geminorum", which is released under the Creative Commons Attribution-Share-Alike License 3.0.