KELT-2

KELT-2
Observation data; Epoch J2000 Equinox J2000
Constellation	Auriga
Right ascension	06h 10m 39.345s
Declination	+30° 57′ 25.71″
Apparent magnitude (V)	8.68
Characteristics
Spectral type	F7 V
B−V color index	0.53
Astrometry
Radial velocity (Rv)	−47.38 km/s
Proper motion (μ)	RA: 16.865 mas/yr ; Dec.: −2.155 mas/yr
Parallax (π)	7.4327±0.0217 mas
Distance	439 ± 1 ly ; (134.5 ± 0.4 pc)
Absolute magnitude (MV)	3.27
Details
Mass	1.314+0.063; −0.06 M☉
Radius	1.84+0.07; −0.05 R☉
Luminosity	3.6 L☉
Surface gravity (log g)	4.03+0.02; −0.03 cgs
Temperature	6148±48 K
Metallicity	0.03±0.08
Rotation	12.9+0.2; −0.5 d
Rotational velocity (v sin i)	9±2 km/s
Age	3.97±0.01 Gyr
Other designations
	BD+30 1138, HD 42176, HIP 29301, WDS J06107+3057, TYC 2420-899-1, 2MASS J06103935+3057258
Database references
SIMBAD	data

KELT-2 (also called HD 42176) is a yellow white main sequence star located about 439 light-years away in the constellation Auriga. The apparent magnitude of this star is 8.77, which means it is not visible to the naked eye but can be seen with a binoculars.

Quick facts Observation data Epoch J2000 Equinox J2000, Constellation ...

Observation data Epoch J2000 Equinox J2000
Constellation	Auriga^[1]
Right ascension	06^h 10^m 39.345^s^[2]
Declination	+30° 57′ 25.71″^[2]
Apparent magnitude (V)	8.68^[3]
Characteristics
Spectral type	F7 V^[1]
B−V color index	0.53^[1]
Astrometry

Radial velocity (R_v)	−47.38^[2] km/s
Proper motion (μ)	RA: 16.865^[2] mas/yr Dec.: −2.155^[2] mas/yr
Parallax (π)	7.4327±0.0217 mas^[2]
Distance	439 ± 1 ly (134.5 ± 0.4 pc)
Absolute magnitude (M_V)	3.27^[1]

Details^[3]

Mass	1.314^+0.063 _−0.06 `M`_☉
Radius	1.84^+0.07 _−0.05 `R`_☉
Luminosity	3.6 `L`_☉
Surface gravity (log g)	4.03^+0.02 _−0.03 cgs
Temperature	6148±48 K
Metallicity	0.03±0.08
Rotation	12.9^+0.2 _−0.5 d
Rotational velocity (v sin i)	9±2 km/s
Age	3.97±0.01 Gyr

Other designations
BD+30 1138, HD 42176, HIP 29301, WDS J06107+3057, TYC 2420-899-1, 2MASS J06103935+3057258
Database references
SIMBAD	data

Description