53 Aurigae
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Auriga |
| Right ascension | 06h 38m 23.01009s[1] |
| Declination | +28° 59′ 03.6220″[1] |
| Apparent magnitude (V) | 5.744[2] |
| Characteristics | |
| Spectral type | B9 Mn + F0m[3] |
| U−B color index | −0.07[4] |
| B−V color index | −0.02[4] |
| Astrometry | |
| Radial velocity (Rv) | 13.1±5.0[5] km/s |
| Proper motion (μ) | RA: −16.390[1] mas/yr Dec.: −14.305[1] mas/yr |
| Parallax (π) | 8.5139±0.1372 mas[1] |
| Distance | 383 ± 6 ly (117 ± 2 pc) |
| Absolute magnitude (MV) | +0.48[6] |
| Orbit[7] | |
| Period (P) | 38.90 yr |
| Semi-major axis (a) | 0.159″ |
| Eccentricity (e) | 0.557 |
| Inclination (i) | 119.5° |
| Longitude of the node (Ω) | 113.5° |
| Periastron epoch (T) | B 1976.73 |
| Argument of periastron (ω) (secondary) | 343.3° |
| Details | |
| 53 Aur A | |
| Mass | 2.49±0.13[8] M☉ |
| Surface gravity (log g) | 4.0[3] cgs |
| Temperature | 10750[3] K |
| Rotational velocity (v sin i) | 25[3] km/s |
| 53 Aur B | |
| Surface gravity (log g) | 4.0[3] cgs |
| Temperature | 7,250[3] K |
| Rotational velocity (v sin i) | 0[3] km/s |
| Other designations | |
| BD+29°1293, GC 8649, HD 47152, HIP 31737, HR 2425, SAO 78571, PPM 96293, CCDM J06384+2859, WDS J06384+2859, TYC 1892-236-1, GSC 01892-00236 | |
| Database references | |
| SIMBAD | data |
53 Aurigae is a binary star system in the northern constellation of Auriga. It is visible to the naked eye as a dim star with a combined apparent visual magnitude of 5.74.[2] Parallax estimates put it at a distance of 383 light-years (117 parsecs) away.[1] The system is receding from the Earth with a heliocentric radial velocity of 13 km/s.[5]
The two components of 53 Aurigae orbit each other every 39 years with an eccentricity of 0.557.[7] The primary component, 53 Aurigae A, is chemically peculiar since it contains higher-than-normal amounts of manganese,[3] but also europium, chromium, and mercury.[8] It is a B-type main-sequence mercury-manganese star,[8] while the secondary component, 53 Aurigae B, is an early F-type main-sequence star.[8] The total mass of the system is estimated to be 4.8 M☉.[8]
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 Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
- ^ a b c d e f g h 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).
- ^ 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).
