HD 43691

HD 43691
Observation data
Epoch J2000      Equinox J2000
Constellation Auriga
Right ascension 06h 19m 34.68s [1]
Declination +41° 05′ 32.3″ [1]
Apparent magnitude (V) 8.03
Characteristics
Spectral type G0IV
B−V color index 0.596 [2]
Astrometry
Radial velocity (Rv) -29.2 ± 0.2 km/s
Proper motion (μ) RA: 23.12 ± 0.94 [1] mas/yr
Dec.: -51.92 ± 0.62 [1] mas/yr
Parallax (π) 12.44 ± 0.83[1] mas
Distance 260 ± 20 ly
(80 ± 5 pc)
Absolute magnitude (MV) 8.57
Details
Mass 1.38 ± 0.05[3] M
Surface gravity (log g) 4.28 ± 0.13 [4]
Temperature 6200 ± 40 K
Metallicity 28 ± 5 %
Age 2.8 ± 0.8 G years
Other designations
BD+41° 1415, HIP 30057, SAO 41025, AG+41° 665, GSC 02930-02105, 2MASS J06193467+4105321, TYC 2930-2105-1, AGKR 5637, HIC 30057, PPM Star Catalogue 48960, uvby98 100043691.
Database references
SIMBAD data
Data sources:
Hipparcos Catalogue,
CCDM (2002),
Bright Star Catalogue (5th rev. ed.)

HD 43691 is a G-type star with magnitude +8.03 located approximately 260 light-years away in the constellation Auriga. This yellow star is about to stop thermonuclear hydrogen-fusion in its core and eventually expand to become a red giant.

Contents

Planetary system

In July 2007, the star is found to have a giant planet in orbit around it.[4] It has minimum mass two and a half times that of Jupiter and orbits the star closer than Mercury to the Sun.

The HD 43691 system[4]
Companion
(in order from star)
Mass Semimajor axis
(AU)
Orbital period
(days)
Eccentricity
b >2.49 MJ 0.24 36.96 ± 0.02 0.14 ± 0.02

See also

References

External links

Coordinates: 06h 19m 34.6771s, +41° 05′ 32.302″