HD 89307

HD 89307
Observation data; Epoch J2000.0 Equinox J2000.0
Constellation	Leo
Right ascension	10h 18m 21.28771s
Declination	+12° 37′ 15.9909″
Apparent magnitude (V)	7.02
Characteristics
Spectral type	G0V
B−V color index	0.594±0.003
Astrometry
Radial velocity (Rv)	+23.27±0.13 km/s
Proper motion (μ)	RA: −272.659 mas/yr ; Dec.: −39.333 mas/yr
Parallax (π)	31.4134±0.0226 mas
Distance	103.83 ± 0.07 ly ; (31.83 ± 0.02 pc)
Absolute magnitude (MV)	4.57
Details
Mass	1.028±0.04 M☉
Radius	1.08+0.01; −0.02 R☉
Luminosity	1.354±0.003 L☉
Surface gravity (log g)	4.414±0.10 cgs
Temperature	5,950±44 K
Metallicity [Fe/H]	−0.15±0.02 dex
Rotation	23.7 d
Rotational velocity (v sin i)	3.21±0.50 km/s
Age	5.3+2.7; −2.9 Gyr; 6.76 Gyr
Other designations
	BD+13 2237, GC 14140, HD 1835, HIP 50473, SAO 99049, PPM 127289
Database references
SIMBAD	data

HD 89307 is a star in the equatorial constellation of Leo. It is too faint to be viewed with the naked eye except under ideal conditions, having an apparent visual magnitude of 7.02.^[2] The star is located at a distance of 104 light-years (32 parsecs) from the Sun based on parallax, and is drifting further away with a radial velocity of +23 km/s.^[1]

Quick facts Observation data Epoch J2000.0 Equinox J2000.0, Constellation ...

This is an ordinary G-type main-sequence star with a stellar classification of G0V.^[3] It is chromospherically inactive and appears older than the Sun with a rotation period of 23.7 days.^[4] The star has about the same mass^[4] as the Sun and is 8% larger. It is radiating 1.35^[5] times the Sun's luminosity from its photosphere at an effective temperature of 5,950 K.^[4]

Observation data Epoch J2000.0 Equinox J2000.0
Constellation	Leo
Right ascension	10^h 18^m 21.28771^s^[1]
Declination	+12° 37′ 15.9909″^[1]
Apparent magnitude (V)	7.02^[2]
Characteristics
Spectral type	G0V^[3]
B−V color index	0.594±0.003^[2]
Astrometry

Radial velocity (R_v)	+23.27±0.13^[1] km/s
Proper motion (μ)	RA: −272.659 mas/yr^[1] Dec.: −39.333 mas/yr^[1]
Parallax (π)	31.4134±0.0226 mas^[1]
Distance	103.83 ± 0.07 ly (31.83 ± 0.02 pc)
Absolute magnitude (M_V)	4.57^[4]

Details^[4]

Mass	1.028±0.04 `M`_☉
Radius	1.08+0.01 −0.02^[5] `R`_☉
Luminosity	1.354±0.003^[5] `L`_☉
Surface gravity (log g)	4.414±0.10 cgs
Temperature	5,950±44 K
Metallicity [Fe/H]	−0.15±0.02^[2] dex
Rotation	23.7 d
Rotational velocity (v sin i)	3.21±0.50 km/s
Age	5.3+2.7 −2.9 Gyr^[2] 6.76^[4] Gyr

Other designations
BD+13 2237, GC 14140, HD 1835, HIP 50473, SAO 99049, PPM 127289^[6]
Database references
SIMBAD	data

Planetary system