NO Aurigae
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Auriga |
| Right ascension | 05h 40m 42.050s |
| Declination | +31° 55′ 14.20″ |
| Apparent magnitude (V) | 6.21 (6.06 - 6.44) |
| Characteristics | |
| Evolutionary stage | Asymptotic giant branch |
| Spectral type | M2S Iab |
| U−B color index | +2.22 |
| B−V color index | +2.09 |
| R−I color index | +1.41 |
| Variable type | LC |
| Astrometry | |
| Radial velocity (Rv) | 7.21±0.45 km/s |
| Proper motion (μ) | RA: 0.061±0.093 mas/yr Dec.: −2.959±0.051 mas/yr |
| Parallax (π) | 0.9189±0.0930 mas |
| Distance | approx. 3,500 ly (approx. 1,100 pc) |
| Absolute magnitude (MV) | −5.88 |
| Details | |
| Mass | 4.93±1.18 M☉ |
| Radius | 439 ± 61 R☉ |
| Luminosity | 30,900 L☉ |
| Surface gravity (log g) | −0.037 cgs |
| Temperature | 3,651±31 K |
| Other designations | |
| BD+31°1049, HD 37536, HIP 26718, HR 1939, SAO 58322 | |
| Database references | |
| SIMBAD | data |
NO Aurigae is a pulsating variable star in the constellation Auriga. It is an unusually-luminous asymptotic giant branch star about 3,500 light years away. It is a 6th magnitude star faintly visible to the naked eye under very good observing conditions.