V394 Aurigae
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Auriga |
| Right ascension | 06h 06m 22.44529s |
| Declination | +29° 30′ 44.6832″ |
| Apparent magnitude (V) | 6.01 - 6.11 |
| Characteristics | |
| Evolutionary stage | AGB |
| Spectral type | M3II |
| U−B color index | 1.94 |
| B−V color index | 1.73 |
| Variable type | Semi-regular |
| Astrometry | |
| Radial velocity (Rv) | −36.40±0.18 km/s |
| Proper motion (μ) | RA: 11.503 mas/yr Dec.: −5.126 mas/yr |
| Parallax (π) | 3.7146±0.0756 mas |
| Distance | 880 ± 20 ly (269 ± 5 pc) |
| Details | |
| Radius | 85 R☉ |
| Luminosity | 985 L☉ |
| Surface gravity (log g) | 0.78 cgs |
| Temperature | 3,639 K |
| Other designations | |
| DO 11899, HIC 28930, PPM Star Catalogue 95388, STT 129, GC 7725, HIP 28930, SAO 77958, ADS 4673, GCRV 3829, HR 2146, AG+29° 663, IDS 06000+2931, TYC 1876-1774-1, BD+29° 1112, IRAS 06031+2931, UBV M 11751, CCDM J06064+2931, GSC 01876-01774, IRC +30137, YZ 29 2943, CSI+29 1112 1, HD 41429, 2MASS J06062243+2930445. | |
| Database references | |
| SIMBAD | data |
V394 Aurigae is a semi-regular variable star in the constellation Auriga. Its brightness varies between magnitudes 6.01 and 6.11, so it is faintly visible to the naked eye under ideal observing conditions. Located around 730 light-years distant, V394 Aurigae shines with a luminosity approximately 985 times that of the Sun and has a surface temperature of 3,639 K.
In 1991, Leroy F. Snyder discovered that the star, then called HR 2146, is a variable star. It was given its variable star designation, V394 Aurigae, in 1993. Koen and Eyer found that the star's brightness, as seen by Hipparcos, varies with a period of 3.9 days.
It is a double star: the secondary, designated V394 Aurigae B, is an eleventh-magnitude F7V star with a separation of 10 arcseconds.