36 Aurigae
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Auriga |
| Right ascension | 06h 00m 58.56230s |
| Declination | +47° 54′ 06.9180″ |
| Apparent magnitude (V) | 5.71 |
| Characteristics | |
| Spectral type | A1 Vp Si or B9.5p Si,Fe |
| B−V color index | −0.007±0.004 |
| Variable type | α2 CVn |
| Astrometry | |
| Radial velocity (Rv) | +15.8±2.1 km/s |
| Proper motion (μ) | RA: +4.186 mas/yr Dec.: −20.368 mas/yr |
| Parallax (π) | 3.5882±0.1266 mas |
| Distance | 910 ± 30 ly (279 ± 10 pc) |
| Absolute magnitude (MV) | −1.97 |
| Details | |
| Mass | 4.42±0.43 M☉ |
| Luminosity | 724+348 −234 L☉ |
| Temperature | 10,046+522 −496 K |
| Rotational velocity (v sin i) | 20 km/s |
| Other designations | |
| 36 Aur, V444 Aurigae, BD+47°1227, HD 40394, HIP 28499, HR 2101, SAO 40778, 2MASS J06005856+4754069 | |
| Database references | |
| SIMBAD | data |
36 Aurigae is a single variable star located about 910 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. 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.
36 Aurigae was discovered to be a variable star when the Hipparcos data was analyzed. Because of that, it was given its variable star designation in 1999.
This is a magnetic chemically peculiar star that has been given stellar classifications of A1 Vp Si and B9.5p Si,Fe, 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. The star has 4.4 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.