Phi Phoenicis
| Observation data Epoch J2000.0 Equinox J2000.0 (ICRS) | |
|---|---|
| Constellation | Phoenix |
| Right ascension | 01h 54m 22.032s |
| Declination | −42° 29′ 48.94″ |
| Apparent magnitude (V) | 5.115 |
| Characteristics | |
| Spectral type | B9pHgMn B9V |
| U−B color index | −0.125 |
| B−V color index | −0.06 |
| Astrometry | |
| Radial velocity (Rv) | 10.44±0.04 km/s |
| Proper motion (μ) | RA: −33.476 mas/yr Dec.: −30.113 mas/yr |
| Parallax (π) | 10.185±0.1886 mas |
| Distance | 320 ± 6 ly (98 ± 2 pc) |
| Absolute magnitude (MV) | 0.243±0.076 |
| Orbit | |
| Period (P) | 1,126.11±0.16 d |
| Semi-major axis (a) | 36.3 mas |
| Eccentricity (e) | 0.589±0.004 |
| Inclination (i) | 93±4.7° |
| Periastron epoch (T) | 2453766.2±2.2 |
| Argument of periastron (ω) (secondary) | 3.52±0.01 [rad]° |
| Semi-amplitude (K1) (primary) | 9.21±0.09 km/s |
| Details | |
| φ Phe A | |
| Mass | 3.0±0.12 M☉ |
| Radius | 2.817±0.157 R☉ |
| Luminosity | 87±7 L☉ |
| Surface gravity (log g) | 3.8±0.1 cgs |
| Temperature | 10,500±200 K |
| Metallicity [Fe/H] | 0.15 dex |
| Rotation | 9.53077±0.00011 d |
| Rotational velocity (v sin i) | 13.62±0.22 km/s |
| Age | 260 Myr |
| φ Phe B | |
| Mass | 0.91±0.025 M☉ |
| Other designations | |
| φ Phe, CPD−43°583, FK5 1053, GC 2315, HD 11753, HIP 8882, HR 558, SAO 215697 | |
| Database references | |
| SIMBAD | data |
Phi Phoenicis, Latinized from φ Phoenicis, is a binary star system in the southern constellation of Phoenix. It is faintly visible to the naked eye with an apparent visual magnitude of 5.1. Based upon an annual parallax shift of 10.185 mas as seen from Earth, it is located approximately 320 light years from the Sun. It is moving away with a heliocentric radial velocity of 10.4 km/s.