41 Arietis
41 Arietis (abbreviated 41 Ari) is a triple star system in the northern constellation of Aries. With an apparent visual magnitude of 3.63, this system is readily visible to the naked eye. It has an annual parallax shift of 19.69 mas, which indicates it is at a distance of 166 light-years (51 parsecs) from the Sun.
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Aries |
| Right ascension | 02h 49m 59.03324s |
| Declination | +27° 15′ 37.8260″ |
| Apparent magnitude (V) | 3.63 |
| Characteristics | |
| Spectral type | B8 Vn |
| U−B color index | –0.38 |
| B−V color index | –0.10 |
| Astrometry | |
| Radial velocity (Rv) | +4 km/s |
| Proper motion (μ) | RA: +66.81 mas/yr Dec.: –116.52 mas/yr |
| Parallax (π) | 19.69 ± 0.19 mas |
| Distance | 166 ± 2 ly (50.8 ± 0.5 pc) |
| Details | |
| Mass | 3.1±0.1 M☉ |
| Luminosity | 160 L☉ |
| Temperature | 11900 K |
| Rotational velocity (v sin i) | 175 km/s |
| Age | 130+10 −30 Myr |
| Other designations | |
| Database references | |
| SIMBAD | data |
The system consists of a binary pair, designated 41 Arietis A, together with a third companion star, 41 Arietis D. (41 Arietis B and C form optical pairs with A, but are not physically related.) The components of A are themselves designated 41 Arietis Aa (formally named Bharani /ˈbærəni/) and Ab.
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