36 Ursae Majoris

Stellar classification



  • X -11
  • Y 33
  • Z -23
→ Sol: 42

Object type

  • High proper-motion Star
  • Star
  • Double or multiple star
  • Infra-Red source
  • UV-emission source
  • X-ray source
simbad:* 36 UMa


36 Ursae Majoris is a double star in the northern constellation of Ursa Major. With an apparent visual magnitude of 4.82, it can be seen with the naked eye in suitable dark skies. Based upon parallax measurements, this star lies at a distance of 41.7 light-years (12.8 parsecs) from Earth.

This star is a solar analog—meaning it has physical properties that make it similar to the Sun. It has 12% more mass and a radius 15% larger than the Sun, with an estimated age of 2.7 billion years. The spectrum of this star matches a stellar classification of F8 V, which indicates this is a main sequence star that is generating energy at its core through the nuclear fusion of hydrogen. The energy is being radiated into space from its outer envelope at an effective temperature of 6,126 K. This gives the star the characteristic yellow-white hue of an F-type star.

36 Ursae Majoris has a magnitude 8.86 common proper motion companion with about half this star's mass at an angular separation of 122.5″ along a position angle of 303°, as of 2012. A second companion with a magnitude of 11.44 is located at an angular separation of 240.6″ along a position angle of 292°, as of 2004.

This article uses material from the Wikipedia article "36 Ursae Majoris", which is released under the Creative Commons Attribution-Share-Alike License 3.0.