Lambda1 Phoenicis
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Phoenix |
| Right ascension | 00h 31m 24.98200s |
| Declination | −48° 48′ 12.6759″ |
| Apparent magnitude (V) | 4.76 |
| Characteristics | |
| Spectral type | A0Va |
| U−B color index | +0.04 |
| B−V color index | +0.02 |
| Astrometry | |
| Radial velocity (Rv) | −2.0±4.2 km/s |
| Proper motion (μ) | RA: +139.946 mas/yr Dec.: +21.275 mas/yr |
| Parallax (π) | 17.8163±0.2228 mas |
| Distance | 183 ± 2 ly (56.1 ± 0.7 pc) |
| Absolute magnitude (MV) | 1.14 |
| Details | |
| Mass | 2.26 M☉ |
| Radius | 2.24 R☉ |
| Luminosity | 33.68 L☉ |
| Surface gravity (log g) | 4.17 cgs |
| Temperature | 9,931 K |
| Metallicity [Fe/H] | 0.00 dex |
| Rotational velocity (v sin i) | 111 km/s |
| Age | 224 Myr |
| Other designations | |
| λ1 Phe, CD−49°115, FK5 15, GC 619, HD 2834, HIP 2472, HR 125, SAO 215131, CCDM J00314-4848A, WDS J00314-4848A | |
| Database references | |
| SIMBAD | data |
λ1 Phoenicis, Latinized as Lambda1 Phoenicis, is a double star in the southern constellation of Phoenix. It is visible to the naked eye as a faint, white-hued point of light with a combined apparent visual magnitude of 4.76. The system is located approximately 183 light years away from the Sun based on parallax. It is a member of the Hyades Supercluster.
The brighter component is an A-type main-sequence star with a stellar classification of A0Va. It may form a binary system of two roughly equal stars. An infrared excess suggests there is a debris disk orbiting 46.3 AU from the star with a mean temperature of 95 K. It has one visual companion at an angular separation of about 30″ and magnitude 13.7.