3 Corvi
| Observation data Epoch J2000.0 Equinox J2000.0 | |
|---|---|
| Constellation | Corvus |
| Right ascension | 12h 11m 03.83987s[1] |
| Declination | −23° 36′ 08.7221″[1] |
| Apparent magnitude (V) | 5.45[2] |
| Characteristics | |
| Evolutionary stage | main sequence[3] |
| Spectral type | A1 V[4] |
| B−V color index | 0.055±0.004[2] |
| Astrometry | |
| Radial velocity (Rv) | +14.41±1.09[5] km/s |
| Proper motion (μ) | RA: −66.853[1] mas/yr Dec.: −19.826[1] mas/yr |
| Parallax (π) | 17.0039±0.1918 mas[1] |
| Distance | 192 ± 2 ly (58.8 ± 0.7 pc) |
| Absolute magnitude (MV) | 1.61[2] |
| Details[5] | |
| Mass | 2.14[6] M☉ |
| Radius | 1.87[7] R☉ |
| Luminosity | 9.55+1.17 −1.04 L☉ |
| Surface gravity (log g) | 4.12±0.22 cgs |
| Temperature | 9,671±329[6] K |
| Metallicity [Fe/H] | +0.17±0.41 dex |
| Rotational velocity (v sin i) | 130 km/s |
| Age | 900+90 −900 Myr |
| Other designations | |
| 3 Crv, BD+22°3305, HD 105850, HIP 59394, HR 4635, SAO 180546[8] | |
| Database references | |
| SIMBAD | data |
3 Corvi is a single[9] star in the southern constellation of Corvus, located 192 light years away from the Sun.[1] It is visible to the naked eye as a faint, white-hued star with an apparent visual magnitude of 5.45.[2] This object is moving further from the Earth with a heliocentric radial velocity of +14 km/s.[5]
This is an A-type main-sequence star[3] with a stellar classification of A1 V.[4] It has 2.14[6] times the mass of the Sun and 1.87[7] times the Sun's radius. The star is around 900 million years old with a high rate of rotation, showing a projected rotational velocity of 130 km/s.[5] It is radiating ten[5] times the luminosity of the Sun from its photosphere at an effective temperature of 9,671 K.[6] An infrared excess has been detected, suggesting that a debris disk with a temperature of 150 K is orbiting 14.7 AU from the host star.[7]
References
[edit | edit source]- ^ a b c d e f Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value). Gaia DR2 record for this source at VizieR.
- ^ a b c d Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
- ^ a b Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
- ^ a b Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
- ^ a b c d e Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
- ^ a b c d Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
- ^ a b c Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
- ^ Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
- ^ Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
