HD 88522
Star in the constellation Antlia
From Wikipedia, the free encyclopedia
HD 88522 is a double or multiple star. The component stars are two white stars of similar spectral type—A1V and A2V—and luminosity.[3]
Right ascension10h 12m 02.85179s[2]
Declination−28° 36′ 21.4485″[2]
Apparentmagnitude(V)6.28 (6.78 + 7.41)[3]
| Observation data Epoch J2000 Equinox ICRS | |
|---|---|
| Constellation | Antlia[1] |
| Right ascension | 10h 12m 02.85179s[2] |
| Declination | −28° 36′ 21.4485″[2] |
| Apparent magnitude (V) | 6.28 (6.78 + 7.41)[3] |
| Characteristics | |
| Spectral type | A1 V (A1 V + A2 V)[3] |
| B−V color index | 0.019±0.004[1] |
| Astrometry | |
| Radial velocity (Rv) | +27.4±0.4[4] km/s |
| Proper motion (μ) | RA: −38.74[2] mas/yr Dec.: −1.24[2] mas/yr |
| Parallax (π) | 6.55±0.58 mas[2] |
| Distance | 500 ± 40 ly (150 ± 10 pc) |
| Absolute magnitude (MV) | 0.86 + 1.49[3] |
| Orbit[5] | |
| Period (P) | 91.89±0.85 yr |
| Semi-major axis (a) | 0.226±0.003″ |
| Eccentricity (e) | 0.676±0.012 |
| Inclination (i) | 76.0±0.7° |
| Longitude of the node (Ω) | 198.3±0.5° |
| Periastron epoch (T) | 2003.58±0.22 |
| Argument of periastron (ω) (secondary) | 59.7±1.1° |
| Details | |
| HD 88522 A | |
| Mass | 2.53[3] M☉ |
| Luminosity | 75.8+16.6 −13.6[6] L☉ |
| Temperature | 9,638+134 −132[6] K |
| Rotational velocity (v sin i) | 24[6] km/s |
| HD 88522 B | |
| Mass | 2.17[3] M☉ |
| Other designations | |
| CD−27°7266, HD 88522, HIP 49967, HR 4003, SAO 178526, WDS J10120-2836AB[7] | |
| Database references | |
| SIMBAD | data |
