GL Virginis, also known as G 12-30, is a
star in the
constellation of
Virgo. It is a faint red dwarf, like more than 70% of the stars located within 10
parsecs of the Solar System; its
magnitude visual
magnitude is 13.898, making it impossible to see with the naked eye.
Located 21.1
light years away, GL Virginis has a spectral type of M4.5V and an
effective temperature of approximately 3110 K.[9] Its luminosity (emitted in the visible section of the
electromagnetic spectrum) is only one ten-thousandth compared to the
Sun; however, since a significant fraction of its radiation is emitted as invisible
infrared light, its
bolometric luminosity increases to 0.5% of that of the Sun. Its mass is 12% that of the Sun[7] and its radius is 16% of the Sun.[8] It is a fairly rapid rotator: its
rotational velocity is least 17 km/s,[8] which implies that it takes less than half a day to complete a rotation on its axis. The star is emitting a frequent flares, with at least five detected by 2019.[4]
The closest known star system to GL Virginis is
Gliese 486, 6.4 light-years away.[11]
^
abRodríguez Martínez, Romy; Lopez, Laura A.; Shappee, Benjamin J.; Schmidt, Sarah J.; Jayasinghe, Tharindu; Kochanek, Christopher S.; Auchettl, Katie; Holoien, Thomas W.-S. (2019), "A Catalog of M-dwarf Flares with ASAS-SN", The Astrophysical Journal, 892 (2): 144,
arXiv:1912.05549,
doi:10.3847/1538-4357/ab793a,
S2CID209323915