V395 Carinae
Low-mass X-ray binary in Carina
From Wikipedia, the free encyclopedia
V395 Carinae, also known as 2S 0921-630, is a low-mass X-ray binary in the constellation Carina. X-ray observations have revealed that it has an extended accretion disk corona.[8]
| Observation data Epoch J2000 Equinox ICRS | |
|---|---|
| Constellation | Carina |
| Right ascension | 09h 22m 34.67620s[1] |
| Declination | −63° 17′ 41.3558″[1] |
| Apparent magnitude (V) | 15.3[2] |
| Characteristics | |
| Spectral type | K0III[3] |
| U−B color index | −0.5[4] |
| B−V color index | +0.6[4] |
| Variable type | X-ray binary |
| Astrometry | |
| Radial velocity (Rv) | +51.6[2] km/s |
| Proper motion (μ) | RA: −3.163 mas/yr[1] Dec.: +4.247 mas/yr[1] |
| Parallax (π) | 0.0607±0.0231 mas[1] |
| Distance | approx. 50,000 ly (approx. 16,000 pc) |
| Orbit | |
| Period (P) | 9.0026 ± 0.0001 d[5] |
| Inclination (i) | 82.2 ± 1.0[5]° |
| Semi-amplitude (K2) (secondary) | 99.1 ± 3.1 [6] km/s |
| Details | |
| Donor Star[7] | |
| Mass | 0.35 ± 0.03 M☉ |
| Rotational velocity (v sin i) | 32.9 ± 0.8 km/s |
| Neutron star | |
| Mass | 1.44 ± 0.10 M☉ |
| Other designations | |
| V395 Car, 2S 0921-630[2] | |
| Database references | |
| SIMBAD | data |
