HD 41534
| Observation data Epoch J2000.0 Equinox J2000.0 (ICRS) | |
|---|---|
| Constellation | Columba |
| Right ascension | 06h 04m 20.26492s[1] |
| Declination | −32° 10′ 20.7434″[1] |
| Apparent magnitude (V) | 5.65[2] |
| Characteristics | |
| Evolutionary stage | main sequence |
| Spectral type | B2V[3] |
| U−B color index | −0.82[4] |
| B−V color index | −0.186±0.003[2] |
| Astrometry | |
| Radial velocity (Rv) | +93.0±3.7[5] km/s |
| Proper motion (μ) | RA: −16.144[1] mas/yr Dec.: +121.467[1] mas/yr |
| Parallax (π) | 3.4507±0.0857 mas[1] |
| Distance | 950 ± 20 ly (290 ± 7 pc) |
| Absolute magnitude (MV) | −1.78[2] |
| Details | |
| Mass | 6.9+0.75 −0.68[6] M☉ |
| Radius | 3.90[7] R☉ |
| Luminosity | 1621.15[2] L☉ |
| Surface gravity (log g) | 4.0±0.25[6] cgs |
| Temperature | 20,000±1,000[6] K |
| Rotational velocity (v sin i) | 122[8] km/s |
| Age | 14+13 −8[6] Myr |
| Other designations | |
| 72G. Col[9], CD−32°1008, FK5 41534, GC 7708, HD 41534, HIP 28756, HR 2149, SAO 196459, PPM 282235, CCDM J06043-3210AB, WDS J06043-3210AB[10] | |
| Database references | |
| SIMBAD | data |
HD 41534 is a binary star[11] system in the southern constellation of Columba. It is dimply visible to the naked eye with a combined apparent visual magnitude of 5.65.[2] The distance to this system is approximately 950 light-years based on parallax,[1] and it is receding from the Sun with a radial velocity of +93 km/s.[5] This is a runaway star system with an unusually high peculiar velocity of 187.6+12.2
−13.8 km/s.[12] It is thought to have been ejected from the OB association Sco OB 1 approximately 14 million years ago.[13]
The primary component is a B-type main-sequence star with a stellar classification of B2V.[3] It displays microvariability with an amplitude of 0.0086 in magnitude and a frequency of 0.11316 cycles per day.[14] The star is an estimated 14[6] million years old with a high rate of spin, showing a projected rotational velocity of 122.[8] It has seven[6] times the mass of the Sun and about four[7] times the Sun's radius. HD 41534 is radiating over 1,600[2] times the luminosity of the Sun from its photosphere at an effective temperature of 20,000 K.[6]
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 e f 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). HR 2149
- ^ 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 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).
- ^ HD 41534 is Gould's 72nd of Columba in his Uranometria Argentina. Some astronomers wrongly called it as simply "72 Col".
- 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).
- ^ 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).
