| Observation data Epoch J2000 Equinox J2000 |
|
|---|---|
| Constellation | Auriga |
| Right ascension | 05h 18m 15.6971s |
| Declination | +42° 47′ 31.6″ |
| Apparent magnitude (V) | 5.65 |
| Characteristics | |
| Spectral type | M4III |
| U−B color index | 1.62 |
| B−V color index | 1.65 |
| Variable type | Variable star |
| Astrometry | |
| Radial velocity (Rv) | -38 km/s |
| Proper motion (μ) | RA: 18.11 mas/yr Dec.: -30.5 mas/yr |
| Parallax (π) | 4.7 ± 0.85 mas |
| Distance | approx. 700 ly (approx. 210 pc) |
| Absolute magnitude (MV) | 7.14 |
| Details | |
| Mass | 0,4 M☉ |
| Radius | 0,5 R☉ |
| Luminosity | 0,04 L☉ |
| Temperature | 2,000–3,500 K |
| Other designations | |
| Database references | |
| SIMBAD | data |
| Data sources: | |
| Hipparcos Catalogue, CCDM (2002), Bright Star Catalogue (5th rev. ed.) |
|
PU Aurigae is a variable star.