| Observation data Epoch J2000.0 Equinox J2000.0 |
|
|---|---|
| Constellation | Andromeda |
| Right ascension | 01h 26m 08.7849s |
| Declination | +34° 34′ 46.921″ |
| Apparent magnitude (V) | 6.31 |
| Characteristics | |
| Spectral type | F7V |
| U−B color index | 0.01 |
| B−V color index | 0.47 |
| Astrometry | |
| Radial velocity (Rv) | 16.9 ± 2 km/s |
| Proper motion (μ) | RA: 235.58 ± 0.66 mas/yr Dec.: -84.99 ± 0.42 mas/yr |
| Parallax (π) | 26.14 ± 0.79 mas |
| Distance | 125 ± 4 ly (38 ± 1 pc) |
| Absolute magnitude (MV) | 6.78 |
| Details | |
| Mass | 1.3 M☉ |
| Radius | 1.07 R☉ |
| Luminosity | 4.588 L☉ |
| Temperature | 6000 – 7500 K |
| Rotation | 0.004641 years |
| Age | 1.95 × 109 years |
| Other designations | |
| Database references | |
| SIMBAD | data |
HD 8673 is an F-type main sequence star approximately 125 light-years away in the constellation of Andromeda. It has an apparent magnitude and absolute magnitude of 6.31 and 3.40 respectively. In its orbit, there is debate about the celestial object as to whether be an exoplanet or a brown dwarf.
An unconfirmed celestial object is thought to be orbiting around HD 8673. The possible mass ranges from 10 to 18 Jupiter mass. This 639-day object orbits at 236 Gm (1.58 AU) away from its parent star HD 8673.
This planet or brown dwarf was discovered in Texas in 2005 by Hatzes, who was the discoverer of Epsilon Eridani b.
| Companion (in order from star) |
Mass | Semimajor axis (AU) |
Orbital period (days) |
Eccentricity |
|---|---|---|---|---|
| b (unconfirmed) | >14 ± 4 MJ | 1.58 | 639 | ? |