| 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] orB9.5p Si,Fe[1] |
| B−Vcolor 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 | |
| 36 Aur,V444 Aurigae,BD+47°1227,HD 40394,HIP 28499,HR 2101,SAO 40778,2MASS J06005856+4754069[8] | |
| Database references | |
| SIMBAD | data |
36 Aurigae is a single[9]variable star located about 910[2] light years away from the Sun in theconstellationAuriga. It has thevariable star designationV444 Aurigae, while36 Aurigae is theFlamsteed designation.[8] This object is visible to thenaked eye as a dim, white-hued star with a baselineapparent visual magnitude of 5.71. It is moving further from the Earth with a heliocentricradial velocity of +16 km/s.[3]
36 Aurigae was discovered to be a variable star when theHipparcos data was analyzed. Because of that, it was given its variable star designation in 1999.[10]
This is a magneticchemically peculiar star that has been givenstellar classifications ofA1 Vp Si[4] andB9.5p Si,Fe,[1] indicating it is alateB- orearlyA-type star showing peculiarities of silicon and iron in thespectrum. It is anAlpha2 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 themass of the Sun and is radiating 724 times theSun's luminosity from itsphotosphere at aneffective temperature of 10,046 K.[6]
