Gliese 877

Gliese 877
Observation data
Epoch J2000.0      Equinox J2000.0
Constellation Octans
Right ascension 22h 55m 45.509s[1]
Declination −75° 27′ 31.21″[1]
Apparent magnitude (V) 10.22[2]
Characteristics
Spectral type M3V[3]

Gliese 877 (GJ 877 / HIP 113229 / LHS 531)[1] is a red dwarf located in the southern constellation of Octans, near the boundary with Indus.

Gliese 877's bolometric luminosity is just 2.3% of our sun's.[4] It shines with an apparent magnitude of +10.22, so it cannot be seen with the naked eye. Nevertheless, it is considerably brighter than other red dwarfs, such as Proxima Centauri, the closest red dwarf to our Solar System; in particular, it is almost 14 times more luminous than Proxima. Of spectral type M3V,[3] its effective temperature is 3390 K.[4] It does not appear to be a variable star.[3]

Gliese 877 is 28.1 light years from the Solar System.[1] Known stars close to it are β Hydri and ζ Tucanae, respectively 4.5 and 6.2 light years.[5]

See also

References

  1. 1 2 3 4 LHS 531 -- High proper-motion Star (SIMBAD)
  2. ↑ Vizier result page: HIP 113229
  3. 1 2 3 Koen, C.; Kilkenny, D.; van Wyk, F.; Marang, F. (2010). "UBV(RI)C JHK observations of Hipparcos-selected nearby stars". Monthly Notices of the Royal Astronomical Society. 403 (4). pp. 1949-1968.
  4. 1 2 Morales, J. C.; Ribas, I.; Jordi, C. (2008). "The effect of activity on stellar temperatures and radii". Astronomy and Astrophysics. 478 (2). pp. 507-512.
  5. ↑ Stars within 15 light-years of Luyten 49-19 (The Internet Stellar Database)


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