HD 47536
| Observation data Epoch J2000.0 Equinox J2000.0 | |
|---|---|
| Constellation | Canis Major |
| Right ascension | 06h 37m 47.61811s |
| Declination | −32° 20′ 23.0405″ |
| Apparent magnitude (V) | +5.25 |
| Characteristics | |
| Evolutionary stage | red giant branch |
| Spectral type | K1 III |
| B−V color index | +1.177±0.002 |
| Astrometry | |
| Radial velocity (Rv) | +79.64±0.13 km/s |
| Proper motion (μ) | RA: +107.755 mas/yr Dec.: +65.122 mas/yr |
| Parallax (π) | 7.9902±0.0535 mas |
| Distance | 408 ± 3 ly (125.2 ± 0.8 pc) |
| Absolute magnitude (MV) | −0.17±0.15 |
| Details | |
| Mass | 0.94±0.06 M☉ |
| Radius | 23.08+0.68 −0.81 R☉ |
| Luminosity | 177.2±2.3 L☉ |
| Surface gravity (log g) | 1.72±0.08 cgs |
| Temperature | 4,384+79 −64 K |
| Metallicity [Fe/H] | −0.68 dex |
| Rotation | 625 days |
| Rotational velocity (v sin i) | 1.93±0.50 km/s |
| Age | 9.33±1.88 Gyr |
| Other designations | |
| CD−32°3216, HD 47536, HIP 31688, HR 2447, SAO 197019, GSC 07091-01257 | |
| Database references | |
| SIMBAD | data |
| Exoplanet Archive | data |
HD 47536 is a single star in the southern constellation of Canis Major. It has an orange hue and is dimly visible to the naked eye with an apparent visual magnitude of +5.25. The star is located at a distance of approximately 408 light years from the Sun based on parallax. It is drifting further away with a radial velocity of 80 km/s.
This is an aging, metal-poor giant star with a stellar classification of K1 III. It is about 9.3 billion years old with 94% of the mass of the Sun. Having exhausted the supply of hydrogen at its core, the star cooled and expanded to 23 times the Sun's radius. The star is spinning slowly, taking 1.71 years to complete its sidereal rotation. It is radiating 177 times the luminosity of the Sun from its swollen photosphere at an effective temperature of 4,384 K. As of 2015, at least one planet is known to orbit this star.