Rho3 Arietis
Template:Other stars by Bayer designation
| Observation data Epoch J2000.0 Equinox J2000.0 (ICRS) | |
|---|---|
| Constellation | Aries[1] |
| Right ascension | Template:RA[2] |
| Declination | Template:DEC[2] |
| Apparent magnitude (V) | 5.58[1] |
| Characteristics | |
| Spectral type | F6 V[3] |
| U−B Template:Engvar | −0.02[4] |
| B−V Template:Engvar | +0.471±0.003[1] |
| V−R Template:Engvar | 0.3[4] |
| R−I Template:Engvar | 0.2[4] |
| Astrometry | |
| Radial velocity (Rv) | +13.576±0.0016[2] km/s |
| Proper motion (μ) | RA: +262.027 mas/yr[2] Dec.: −231.606 mas/yr[2] |
| Parallax (π) | 27.2557±0.1350 mas[2] |
| Distance | Template:Rnd ± Template:Rnd ly (Template:Rnd ± Template:Rnd pc) |
| Absolute magnitude (MV) | 2.89[5] |
| Details | |
| Mass | 1.49[6] Template:Solar mass |
| Luminosity | 6.65[1] Template:Solar luminosity |
| Surface gravity (log g) | 4.19[7] cgs |
| Temperature | 6,380[7] K |
| Metallicity [Fe/H] | −0.23±0.10[7] dex |
| Rotational velocity (v sin i) | 15[8] km/s |
| Age | 2.4[5] Gyr |
| Metallicity [Fe/H] | {{{metal_fe2}}} dex |
| Other designations | |
| Template:Odlist[4] | |
| Database references | |
| SIMBAD | data |
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Rho3 Arietis is a star in the northern constellation of Aries. Its name is a Bayer designation that is Latinized from ρ3 Arietis, and abbreviated Rho3 Ari or ρ3 Ari. This star is faintly visible to the naked eye with an apparent visual magnitude of 5.63.[4] Based upon an annual parallax shift of Script error: No such module "val".,[9] this star is located at a distance of Script error: No such module "convert". from Earth. It is drifting further away from the Sun with a radial velocity of +13.6 km/s.[2]
This is an astrometric binary system.[10][6] The visible component is an F-type main sequence star with a stellar classification of F6 V.[3] This star has 1.49[6] times the mass of the Sun and is radiating 6.65[1] times the Sun's luminosity at an effective temperature of 6,380 K.[7] It is around 2.4 billion years old[5] and has a lower abundance of elements other than hydrogen and helium when compared to the Sun.[7]
Name
This star, along with δ Ari, ε Ari, ζ Ari, and π Ari, were Al Bīrūnī's Al Buṭain (ألبطين), the dual of Al Baṭn, the Belly.[11] According to the catalogue of stars in the Technical Memorandum 33-507 - A Reduced Star Catalog Containing 537 Named Stars, Al Buṭain were the title for five stars : δ Ari as Botein, π Ari as Al Buṭain I, ρ3 Ari as Al Buṭain II, ε Ari as Al Buṭain III dan ζ Ari as Al Buṭain IV[12]
References
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