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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