18 Aurigae

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
CCDM J05194+3359, CEL 608, HIC 24832, SAO 57893, GC 6504, HIP 24832, GCRV 3162, HR 1734, TD1 4346, ADS 3893, IDS 05128+3353, TYC 2398-1022-1, AG+33° 497, GSC 02398-01022, 2MASS J05192374+3359074, UBV M 10801, BD+33° 1010, HD 34499, PPM 70198, uvby98 100034499.
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

• CCDM JJ05194+3359
• HR 1734
• Image 18 Aurigae