41 Aurigae
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Auriga |
| 41 Aur A | |
| Right ascension | 06h 11m 36.59156s |
| Declination | +48° 42′ 39.5603″ |
| Apparent magnitude (V) | 6.15 |
| 41 Aur B | |
| Right ascension | 06h 11m 36.55589s |
| Declination | +48° 42′ 47.0528″ |
| Apparent magnitude (V) | 6.84 |
| Characteristics | |
| 41 Aur A | |
| Evolutionary stage | Main sequence |
| Spectral type | A2Va+ |
| B−V color index | 0.06 |
| 41 Aur B | |
| Evolutionary stage | Am star |
| Spectral type | kA5hA5mF0(IV-V) |
| B−V color index | 0.15 |
| Astrometry | |
| 41 Aur A | |
| Radial velocity (Rv) | 31 km/s |
| Proper motion (μ) | RA: +15.085 mas/yr Dec.: −55.907 mas/yr |
| Parallax (π) | 10.5367±0.0689 mas |
| Distance | 310 ± 2 ly (94.9 ± 0.6 pc) |
| 41 Aur B | |
| Radial velocity (Rv) | 29 km/s |
| Proper motion (μ) | RA: +17.183 mas/yr Dec.: −53.536 mas/yr |
| Parallax (π) | 10.3314 ± 0.0711 mas |
| Distance | 316 ± 2 ly (96.8 ± 0.7 pc) |
| Details | |
| 41 Aur A | |
| Temperature | 9,000+278 −596 K |
| Rotational velocity (v sin i) | 138 km/s |
| 41 Aur B | |
| Mass | 1.99±0.10 M☉ |
| Radius | 1.78+0.12 −0.18 R☉ |
| Luminosity | 11.2±0.1 L☉ |
| Temperature | 7,925+421 −260 K |
| Rotational velocity (v sin i) | 133 km/s |
| Other designations | |
| 41 Aur, BD+48°1352, HIP 29388, ADS 4773, WDS J06116+4843 | |
| 41 Aur A: GC 7853, HD 42127, HR 2176, SAO 40925 | |
| 41 Aur B: GC 7851, HD 42126, HR 2175, SAO 40924 | |
| Database references | |
| SIMBAD | data |
41 Aurigae is a binary star system located around 310–316 light years away from the Sun in the northern constellation of Auriga. It is visible to the naked eye as a dim, white-hued star with a combined apparent visual magnitude of 5.83. This system is moving further from the Earth with a heliocentric radial velocity of 31 km/s. It is a probable member of the Hyades Supercluster.
As of 2012, the pair had an angular separation of 7.39″ along a position angle of 357.7°. The primary component is an A-type main-sequence star with a stellar classification of A2Va+ and a visual magnitude of 6.15. The magnitude 6.84 secondary companion is a possible Am star with a stellar classification of kA5hA5mF0(IV-V), showing the calcium K line and hydrogen lines of an A5 star and the metal lines of an F0 star.