HD 63765

HD 63765

Observation data Epoch J2000.0      Equinox J2000.0
Constellation	Carina
Right ascension	07h 47m 49.719s
Declination	−54° 15′ 50.93″
Apparent magnitude (V)	8.10
Characteristics
Spectral type	G9V
Apparent magnitude (B)	8.85
Apparent magnitude (J)	6.768
Apparent magnitude (H)	6.442
Apparent magnitude (K)	6.316
B−V color index	0.75
Astrometry
Radial velocity (Rv)	22.1 km/s
Proper motion (μ)	RA: 147.67 ± 0.66 mas/yr Dec.: −279.19 ± 0.71 mas/yr
Parallax (π)	30.07 ± 0.56 mas
Distance	108 ± 2 ly (33.3 ± 0.6 pc)
Absolute magnitude (MV)	5.537
Details
Mass	0.89 M☉
Radius	0.84 ± 0.06 R☉
Luminosity	0.544 ± 0.031 L☉
Surface gravity (log g)	4.46 cgs
Temperature	5430 ± 100 K
Metallicity	-0.16
Other designations
CD−53°2007, HIP 38041, LTT 2952, NLTT 18486, PPM 336398, SAO 235521
Database references
SIMBAD	data
Exoplanet Archive	data
Extrasolar Planets Encyclopaedia	data

HD 63765 is an 8th-magnitude G-type main sequence star located approximately 106 light years away in the constellation Carina. This star is smaller, cooler, dimmer, and less massive than the Sun. It has a lower iron content than our Sun, with approximately 69% of the Sun's iron-to-hydrogen ratio. In 2009, a gas giant planet was found in orbit around the star.

Planetary system

HD 63765 b is an extrasolar planet which orbits the star. This planet has at least 0.64 times the mass of Jupiter and takes 358 days to orbit the star at a semimajor axis of 0.94 AU. The planet was announced in a press release dating from October 2009.

The HD 63765 planetary system

Companion (in order from star)	Mass	Semimajor axis (AU)	Orbital period (days)	Eccentricity	Inclination	Radius
b	≥0.64 ± 0.05 MJ	0.940 ± 0.016	358.0 ± 1.0	0.240 ± 0.043	—	—

See also

• List of extrasolar planets