HD 50554
| Observation data Epoch J2000.0 Equinox J2000.0 | |
|---|---|
| Constellation | Gemini |
| Right ascension | 06h 54m 42.82615s |
| Declination | +24° 14′ 44.0057″ |
| Apparent magnitude (V) | +6.84 |
| Characteristics | |
| Evolutionary stage | main sequence |
| Spectral type | F8V |
| B−V color index | 0.582±0.008 |
| Astrometry | |
| Radial velocity (Rv) | −3.77±0.13 km/s |
| Proper motion (μ) | RA: −35.839 mas/yr Dec.: −96.668 mas/yr |
| Parallax (π) | 32.1855±0.0242 mas |
| Distance | 101.34 ± 0.08 ly (31.07 ± 0.02 pc) |
| Absolute magnitude (MV) | 4.46 |
| Details | |
| Mass | 1.06±0.03 M☉ |
| Radius | 1.07±0.03 R☉ |
| Luminosity | 1.37±0.01 L☉ |
| Surface gravity (log g) | 4.4±0.04 cgs |
| Temperature | 6,036±52 K |
| Metallicity [Fe/H] | 0.05±0.06 dex |
| Rotational velocity (v sin i) | 2.3 km/s |
| Age | 3.3±1.4 Gyr 2.1±1.6 Gyr |
| Other designations | |
| BD+24°1451, GC 9043, HD 50554, HIP 33212, SAO 78855, GSC 01894-01961 | |
| Database references | |
| SIMBAD | data |
HD 50554 is a single, Sun-like star with an exoplanetary companion in the northern constellation of Gemini. It has an apparent visual magnitude of +6.84, which makes it a 7th magnitude star; it is not visible to the naked eye, but can be viewed with binoculars or a telescope. The system is located at a distance of 101 light-years (31 parsecs) from the Sun based on parallax, but is drifting closer with a radial velocity of −4 km/s.
This is a yellow-white hued F-type main-sequence star with a stellar classification of F8V. Age estimates put it at around 2–3 billion years old. It has a Sun-like metallicity a low level of chromospheric activity and is spinning with a projected rotational velocity of 2.3 km/s. The star has a slightly higher mass and larger radius than the Sun. It is radiating 137% of the luminosity of the Sun from its photosphere at an effective temperature of 6,036 K.