V1581 Cygni G 208-44/208-45

Stellar classification



  • X -15
  • Y 2
  • Z 3
→ Sol: 15

Object type

  • Flare Star
  • Star
  • Double or multiple star
  • Infra-Red source
  • High proper-motion Star
  • Variable Star
  • X-ray source
simbad:G 208-44


GJ 1245 is a double star with components G 208-44 and G 208-45, 14 light-years away, relatively close to the Solar System. G 208-44 is itself a closer double star made up of two red dwarfs, while G 208-45 is also a red dwarf. GJ 1245 is the 37th closest stellar system to the Solar System, located in the constellation Cygnus. GJ 1245 A and B are active flare stars, and the pair are collectively designated V1581 Cygni.

The largest of the three stars, G208-44 A (GJ 1245 A) is only 11% the Sun's mass. Of the other two stars, G 208-44 B (GJ 1245 C), is closest to star A at 8 AU away; it is 7% of the Sun's Mass. The third star, GJ 1245 B, is 33 AU away from star A, and is 10% of the Sun's Mass; it would appear as bright as Venus does from Earth when viewed from star A.

This article uses material from the Wikipedia article "G 208-44/208-45", which is released under the Creative Commons Attribution-Share-Alike License 3.0.