HD 108236

HD 108236
Observation data; Epoch J2000 Equinox J2000
Constellation	Centaurus
Right ascension	12h 26m 17.8916s
Declination	−51° 21′ 46.2141″
Apparent magnitude (V)	9.24
Characteristics
Evolutionary stage	main-sequence star
Spectral type	G5V
Astrometry
Radial velocity (Rv)	16.78±0.22 km/s
Proper motion (μ)	RA: −70.627 mas/yr ; Dec.: −49.758 mas/yr
Parallax (π)	15.4861±0.0127 mas
Distance	210.6 ± 0.2 ly ; (64.57 ± 0.05 pc)
Details
Mass	0.867+0.047; −0.046 M☉
Radius	0.876±0.007 R☉
Luminosity	0.707±0.032 L☉
Surface gravity (log g)	4.49±0.11 cgs
Temperature	5660±61 K
Metallicity [Fe/H]	−0.28±0.04 dex
Age	6.7+3.3; −3.4 Gyr
Other designations
	CD−50 6971, HIP 60689, TOI-1233, TYC 8243-1948-1, GSC 08243-01948, 2MASS J12261789-5121462
Database references
SIMBAD	data

HD 108236 is a G-type main-sequence star. Its surface temperature is 5660±61 K. HD 108236 is severely depleted in heavy elements compared to the Sun, with a metallicity Fe/H index of −0.28±0.04 (52% of the Solar System), and is probably older than the Sun at an age of 6.7^+3.3
_−3.4 billion years.^[3]

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

According to WISE mission data, the star was suspected to be surrounded by a debris disk, but a reanalysis of the data rejected the debris disk hypothesis by 2014.^[4] The reason for the false positive was contamination from a nearby infrared source.^[5]

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Observation data Epoch J2000 Equinox J2000
Constellation	Centaurus
Right ascension	12^h 26^m 17.8916^s^[1]
Declination	−51° 21′ 46.2141″^[1]
Apparent magnitude (V)	9.24
Characteristics
Evolutionary stage	main-sequence star
Spectral type	G5V
Astrometry

Radial velocity (R_v)	16.78±0.22^[2] km/s
Proper motion (μ)	RA: −70.627^[2] mas/yr Dec.: −49.758^[2] mas/yr
Parallax (π)	15.4861±0.0127 mas^[2]
Distance	210.6 ± 0.2 ly (64.57 ± 0.05 pc)

Details^[3]

Mass	0.867^+0.047 _−0.046 `M`_☉
Radius	0.876±0.007 `R`_☉
Luminosity	0.707±0.032 `L`_☉
Surface gravity (log g)	4.49±0.11 cgs
Temperature	5660±61 K
Metallicity [Fe/H]	−0.28±0.04 dex
Age	6.7^+3.3 _−3.4 Gyr

Other designations
CD−50 6971, HIP 60689, TOI-1233, TYC 8243-1948-1, GSC 08243-01948, 2MASS J12261789-5121462^[1]
Database references
SIMBAD	data

Companion (in order from star)	Mass	Semimajor axis (AU)	Orbital period (days)	Eccentricity	Inclination	Radius
b	4.23^+0.41 _−0.39 $M$ _🜨	0.0451±0.0004	3.7958785^+0.0000076 _−0.0000070	0.067^+0.025 _−0.026	88.23±0.32°	1.587±0.028 $R$ _🜨
c	8.90^+0.67 _−0.64 $M$ _🜨	0.0626±0.0006	6.2036717^+0.0000092 _−0.0000100	0.091^+0.021 _−0.033	88.8±0.2°	2.122±0.025 $R$ _🜨
d	7.75^+0.91 _−0.62 $M$ _🜨	0.1087±0.0010	14.175818^+0.000024 _−0.000023	0.075^+0.021 _−0.022	88.8±0.1°	2.629±0.031 $R$ _🜨
e	8.2^+3.8 _−1.2 $M$ _🜨	0.1348±0.0012	19.5901277±0.000030	0.073^+0.014 _−0.017	89.3±0.1°	3.008±0.032 $R$ _🜨
f	3.95^+0.46 _−0.32 $M$ _🜨	0.1773±0.0016	29.53935^+0.00012 _−0.00014	0.024^+0.024 _−0.016	89.07±0.03°	1.89±0.04 $R$ _🜨

HD 108236

Planetary system

See also

References

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