36 Aurigae is a single[9] variable star located about 910[2] light years away from the Sun in the constellation Auriga. It has the variable star designation V444 Aurigae, while 36 Aurigae is the Flamsteed designation.[8] This object is visible to the naked eye as a dim, white-hued star with a baseline apparent visual magnitude of 5.71. It is moving further from the Earth with a heliocentric radial velocity of +16 km/s.[3]
Observation data Epoch J2000 Equinox J2000 | |
---|---|
Constellation | Auriga |
Right ascension | 06h 00m 58.56230s[2] |
Declination | +47° 54′ 06.9180″[2] |
Apparent magnitude (V) | 5.71[3] |
Characteristics | |
Spectral type | A1 Vp Si[4] or B9.5p Si,Fe[1] |
B−V color index | −0.007±0.004[3] |
Variable type | α2 CVn[5] |
Astrometry | |
Radial velocity (Rv) | +15.8±2.1[3] km/s |
Proper motion (μ) | RA: +4.186[2] mas/yr Dec.: −20.368[2] mas/yr |
Parallax (π) | 3.5882 ± 0.1266 mas[2] |
Distance | 910 ± 30 ly (279 ± 10 pc) |
Absolute magnitude (MV) | −1.97[3] |
Details | |
Mass | 4.42±0.43[6] M☉ |
Luminosity | 724+348 −234[6] L☉ |
Temperature | 10,046+522 −496[6] K |
Rotational velocity (v sin i) | 20[7] km/s |
Other designations | |
Database references | |
SIMBAD | data |
This is a magnetic chemically peculiar star that has been given stellar classifications of A1 Vp Si[4] and B9.5p Si,Fe,[1] indicating it is a late B- or early A-type star showing peculiarities of silicon and iron in the spectrum. It is an Alpha2 Canum Venaticorum variable that ranges in visual magnitude from 5.70 down to 5.74 with a period of 14.368 days.[5] The star has 4.4[6] times the mass of the Sun and is radiating 724 times the Sun's luminosity from its photosphere at an effective temperature of 10,046 K.[6]