HD 45364
| Observation data Epoch J2000.0 Equinox J2000.0 | |
|---|---|
| Constellation | Canis Major |
| Right ascension | 06h 25m 38.47436s |
| Declination | −31° 28′ 51.4307″ |
| Apparent magnitude (V) | 8.08 |
| Characteristics | |
| Evolutionary stage | main sequence |
| Spectral type | G8V |
| B−V color index | 0.719±0.015 |
| V−R color index | 0.01 |
| Astrometry | |
| Radial velocity (Rv) | +16.40±0.14 km/s |
| Proper motion (μ) | RA: +52.242 mas/yr Dec.: −11.771 mas/yr |
| Parallax (π) | 29.1339±0.0172 mas |
| Distance | 111.95 ± 0.07 ly (34.32 ± 0.02 pc) |
| Absolute magnitude (MV) | +5.51 |
| Details | |
| Mass | 0.88±0.02 M☉ |
| Radius | 0.82±0.01 R☉ |
| Luminosity | 0.562±0.004 L☉ |
| Surface gravity (log g) | 4.55±0.03 cgs |
| Temperature | 5,540±31 K |
| Metallicity [Fe/H] | −0.14±0.03 dex |
| Rotational velocity (v sin i) | 1.672±0.665 km/s |
| Age | 3.4±2.7 Gyr |
| Other designations | |
| CD−31°3286, HD 30579, HIP 30579, SAO 196806 | |
| Database references | |
| SIMBAD | data |
| Exoplanet Archive | data |
HD 45364 is a star in the southern constellation of Canis Major. It is too faint to be visible to the naked eye, having an apparent visual magnitude of 8.08. The distance to this system is 112 light years based on parallax. It is drifting further away from the Sun with a radial velocity of +16.4 km/s, having come within 49 light-years some 1.5 million years ago.
This object is an ordinary G-type main-sequence star with a stellar classification of G8V, which indicates it is generating energy through core hydrogen fusion. It is around 3.4 billion years old and is spinning with a projected rotational velocity of 1.7 km/s. The star has 88% of the mass of the Sun and 82% of the Sun's radius. It is radiating 56% of the luminosity of the Sun from its photosphere at an effective temperature of 5,540 K. As of August 2008 there are two confirmed extrasolar planets (or exoplanets) orbiting around it.