HD 37605
HD 37605 is a star in the equatorial constellation of Orion. It is orange in hue but is too faint to be visible to the naked eye, having an apparent visual magnitude of 8.67. Parallax measurements yield a distance estimate of 153 light years from the Sun. It has a high proper motion and is drifting closer with a radial velocity of −22 km/s.
| Observation data Epoch J2000.0 Equinox J2000.0 | |
|---|---|
| Constellation | Orion |
| Right ascension | 05h 40m 01.7281s |
| Declination | +06° 03′ 38.0743″ |
| Apparent magnitude (V) | 8.67 |
| Characteristics | |
| Spectral type | K0 V |
| B−V color index | 0.827±0.005 |
| Astrometry | |
| Radial velocity (Rv) | −21.81±0.25 km/s |
| Proper motion (μ) | RA: 52.466±0.089 mas/yr Dec.: −247.255±0.076 mas/yr |
| Parallax (π) | 21.3450 ± 0.0517 mas |
| Distance | 152.8 ± 0.4 ly (46.8 ± 0.1 pc) |
| Absolute magnitude (MV) | 5.46 |
| Details | |
| Mass | 0.98±0.01 M☉ |
| Radius | 0.89±0.01 R☉ |
| Luminosity | 0.602±0.002 L☉ |
| Surface gravity (log g) | 4.52±0.01 cgs |
| Temperature | 5,380±13 K |
| Metallicity [Fe/H] | 0.25±0.04 dex |
| Rotation | 57.67 days |
| Rotational velocity (v sin i) | 4.5 km/s |
| Age | 1.8±1.0 or 7 Gyr |
| Other designations | |
| Database references | |
| SIMBAD | data |
| Exoplanet Archive | data |
This object is a K-type main-sequence star with a stellar classification of K0 V. It is an inactive, metal-rich star. Age estimates range from 1.8 up to 7 billion years old, and it is spinning with a projected rotational velocity of 4.5 km/s. The star has 98% of the mass of the Sun and 89% of the Sun's radius. It is radiating 60% of the luminosity of the Sun from its photosphere at an effective temperature of 5,380 K.