Gliese 3685 A
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Leo |
| Right ascension | 11h 47m 40.74s |
| Declination | +00° 15′ 20.2″ |
| Apparent magnitude (V) | 13.37 |
| Characteristics | |
| Spectral type | M4V |
| U−B color index | ? |
| B−V color index | ? |
| Variable type | None |
| Astrometry | |
| Proper motion (μ) | RA: -311 mas/yr Dec.: -101 mas/yr |
| Distance | 45 ly |
| Details | |
| Mass | ? M☉ |
| Radius | ? R☉ |
| Luminosity | ? L☉ |
| Temperature | ? K |
| Metallicity | ? |
| Rotation | ? |
| Age | ? years |
| Other designations | |
Gliese 3685 A is the primary companion of Gliese 3685. It is a very old red dwarf that is also a flare star. A 20-minute flare was observed in 2004 by the GALEX satellite.[1]
References
- ↑ Robinson, Richard D.; Wheatley, Jonathan M.; Welsh, Barry Y.; Forster, Karl; Morrissey, Patrick; Seibert, Mark; Rich, R. Michael; Salim, Samir; Barlow, Tom A.; Bianchi, Luciana; Byun, Yong-Ik; Donas, Jose; Friedman, Peter G.; Heckman, Timothy M.; Jelinsky, Patrick N.; Lee, Young-Wook; Madore, Barry F.; Malina, Roger F.; Martin, D. Christopher; Milliard, Bruno; Neff, Susan G.; Schiminovich, David; Siegmund, Oswald H. W.; Small, Todd; Szalay, Alex S.; Wyder, Ted K. (2005). "GALEX Observations of an Energetic Ultraviolet Flare on the dM4e Star GJ 3685A". The Astrophysical Journal. 633 (1): 447–51. arXiv:astro-ph/0507396
. Bibcode:2005ApJ...633..447R. doi:10.1086/444608.
- "GJ 3685 A -- Flare Star". SIMBAD Astronomical Database. Centre de données astronomiques de Strasbourg.
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