18 Aurigae
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Auriga |
| Right ascension | 05h 19m 23.7427s |
| Declination | +33° 59′ 07.514″ |
| Apparent magnitude (V) | 6.493 |
| Characteristics | |
| Spectral type | A7V |
| U−B color index | 0.1 |
| B−V color index | 0.24 |
| Astrometry | |
| Radial velocity (Rv) | 7.3 km/s |
| Proper motion (μ) | RA: 26.56 mas/yr Dec.: -4.32 mas/yr |
| Parallax (π) | 13.85 ± 0.81 mas |
| Distance | 240 ± 10 ly (72 ± 4 pc) |
| Absolute magnitude (MV) | 6.724 |
| Details | |
| Mass | 3,1 M☉ |
| Radius | 2,1 R☉ |
| Luminosity | 40 L☉ |
| Temperature | 7,500–10,000 K |
| Rotation | 120 km/s 0,0024289535 Year |
| Orbit | |
| Companion | CCDM 05194+3359 B |
| Semi-major axis (a) | 4.1" |
| Inclination (i) | 165° |
| Other designations | |
| Database references | |
| SIMBAD | data |
| Data sources: | |
| Hipparcos Catalogue, CCDM (2002), Bright Star Catalogue (5th rev. ed.) | |
18 Aurigae is a star in the constellation Auriga. Its apparent magnitude is 6.49.
References
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