Psi3 Aurigae
| Observation data Epoch J2000.0 Equinox J2000.0 (ICRS) | |
|---|---|
| Constellation | Auriga |
| Right ascension | 06h 38m 49.180s |
| Declination | +39° 54′ 09.21″ |
| Apparent magnitude (V) | +5.20 |
| Characteristics | |
| Spectral type | B8 III |
| U−B color index | −0.38 |
| B−V color index | −0.07 |
| Astrometry | |
| Radial velocity (Rv) | −1.22±4.04 km/s |
| Proper motion (μ) | RA: −7.718 mas/yr Dec.: −11.191 mas/yr |
| Parallax (π) | 3.6617±0.1113 mas |
| Distance | 890 ± 30 ly (273 ± 8 pc) |
| Absolute magnitude (MV) | −2.71 |
| Details | |
| Radius | 4.2 R☉ |
| Luminosity | 1,624 L☉ |
| Temperature | 13,361±83 K |
| Rotational velocity (v sin i) | 118 km/s |
| Other designations | |
| ψ3 Aur, 52 Aur, BD+40°1665, GC 8655, HD 47100, HIP 31789, HR 2420, SAO 59319, PPM 71895 | |
| Database references | |
| SIMBAD | data |
Psi3 Aurigae is a single, blue-white hued star in the northern constellation of Auriga. Its name is a Bayer designation that is Latinized from ψ3 Aurigae, and abbreviated Psi3 Aur or ψ3 Aur. This star is dimly visible to the naked eye with an apparent visual magnitude of +5.20. Based upon an annual parallax shift of 3.66 mas as seen from the Earth, it is approximately 890 light-years (270 pc) distant from the Sun.
This is a B-type giant star with a stellar classification of B8 III. It has about 4.2 times the radius of the Sun and is spinning with a relatively high projected rotational velocity of 118 km/s. The star is radiating 1,624 times the Sun's luminosity from its photosphere at an effective temperature of 13,361 K.