HD 10180

HD 10180
	; View of the sky around the star HD 10180 (center); Credit: ESO
Observation data; Epoch J2000 Equinox J2000
Constellation	Hydrus
Right ascension	01h 37m 53.57724s
Declination	−60° 30′ 41.4821″
Apparent magnitude (V)	7.33
Characteristics
Evolutionary stage	Main sequence
Spectral type	G1V
Astrometry
Radial velocity (Rv)	35.44±0.12 km/s
Proper motion (μ)	RA: −14.303±0.017 mas/yr ; Dec.: 8.058±0.016 mas/yr
Parallax (π)	25.6611 ± 0.0146 mas
Distance	127.10 ± 0.07 ly ; (38.97 ± 0.02 pc)
Details
Mass	1.062 ± 0.017 M☉
Radius	1.11 ± 0.318 R☉
Luminosity	1.64± 0.02 L☉
Surface gravity (log g)	4.39 cgs
Temperature	5,911 K
Metallicity [Fe/H]	0.08 dex
Rotation	24 ± 3 days
Rotational velocity (v sin i)	< 3 km/s
Age	7.3 Gyr
Other designations
	2MASS J01375356-6030414, CD–61°285, HD 10180, HIP 7599, SAO 248411
Database references
SIMBAD	data

HD 10180, also designated 2MASS J01375356-6030414, is a Sun-like star in the southern constellation Hydrus that is notable for its large planetary system. Since its discovery, at least six exoplanets have been observed orbiting it, and some studies have proposed up to nine potential planets, which would make it potentially the largest of all known planetary systems, including the Solar System.^[8]^[5]

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[SIMBAD-2] Cite error: The named reference SIMBAD was invoked but never defined (see the help page).

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[ApJS_168_297-4] Cite error: The named reference ApJS_168_297 was invoked but never defined (see the help page).

[aaa528-5] Cite error: The named reference aaa528 was invoked but never defined (see the help page).

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[Tuomi-8] Cite error: The named reference Tuomi was invoked but never defined (see the help page).

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Observation data Epoch J2000 Equinox J2000
View of the sky around the star HD 10180 (center) Credit: ESO
Constellation	Hydrus
Right ascension	01^h 37^m 53.57724^s^[1]
Declination	−60° 30′ 41.4821″^[1]
Apparent magnitude (V)	7.33^[2]
Characteristics
Evolutionary stage	Main sequence
Spectral type	G1V^[3]
Astrometry

Radial velocity (R_v)	35.44±0.12^[1] km/s
Proper motion (μ)	RA: −14.303±0.017 mas/yr^[1] Dec.: 8.058±0.016 mas/yr^[1]
Parallax (π)	25.6611 ± 0.0146 mas^[1]
Distance	127.10 ± 0.07 ly (38.97 ± 0.02 pc)

Details

Mass	1.062 ± 0.017^[4] `M`_☉
Radius	1.11 ± 0.318^[4] `R`_☉
Luminosity	1.64± 0.02^[5] `L`_☉
Surface gravity (log g)	4.39^[6] cgs
Temperature	5,911^[6] K
Metallicity [Fe/H]	0.08^[6] dex
Rotation	24 ± 3 days^[5]
Rotational velocity (v sin i)	< 3^[5] km/s
Age	7.3^[7] Gyr

Other designations
2MASS J01375356-6030414, CD–61°285, HD 10180, HIP 7599, SAO 248411^[2]
Database references
SIMBAD	data