HD 33142

HD 33142
	Location of HD 33142 (circled)
Observation data; Epoch J2000.0 Equinox J2000.0
Constellation	Lepus
Right ascension	05h 07m 35.54139s
Declination	−13° 59′ 11.3368″
Apparent magnitude (V)	7.96
Characteristics
Evolutionary stage	Red-giant branch star
Spectral type	K0III
B−V color index	0.935
J−H color index	0.442
J−K color index	0.553
Astrometry
Radial velocity (Rv)	33.980499 km/s
Proper motion (μ)	RA: -7.488 mas/yr ; Dec.: 33.693 mas/yr
Parallax (π)	8.2719 ± 0.0202 mas
Distance	394.3 ± 1.0 ly ; (120.9 ± 0.3 pc)
Absolute magnitude (MV)	2.24
Details
Mass	1.52±0.03 M☉
Radius	4.17+0.03; −0.07 R☉
Luminosity	10.00+0.09; −0.23 L☉
Surface gravity (log g)	3.375+0.021; −0.002 cgs
Temperature	5025.4+23.6; −15.5 K
Metallicity [Fe/H]	0.06±0.01 dex
Rotational velocity (v sin i)	≤2 km/s
Other designations
	BD−14° 1051, Gaia DR3 2986948238799721216, GC 2232, HD 33142, HIP 23844, SAO 150161, PPM 215317, TIC 169397663, TYC 5342-891-1, GSC 05342-00891, 2MASS J05073553-1359113
Database references
SIMBAD	data

HD 33142 is a solitary 8th-magnitude red giant located about 394 light-years (121 pc) away in the southern constellation of Lepus. It is orbited by three confirmed exoplanets, namely the Jupiter-sized planets HD 33142 b and c, and a Saturn-like planet, d, located closer to the star.

^ ^a ^b ^c ^d Cite error: The named reference edr3 was invoked but never defined (see the help page).
^ ^a ^b ^c ^d Cite error: The named reference simbad was invoked but never defined (see the help page).
^ ^a ^b ^c Cite error: The named reference Trifonov2022 was invoked but never defined (see the help page).
^ Cite error: The named reference apogee was invoked but never defined (see the help page).

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[edr3-1] Cite error: The named reference edr3 was invoked but never defined (see the help page).

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

[Trifonov2022-3] Cite error: The named reference Trifonov2022 was invoked but never defined (see the help page).

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

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Observation data Epoch J2000.0^[1] Equinox J2000.0^[1]
Location of HD 33142 (circled)
Constellation	Lepus
Right ascension	05^h 07^m 35.54139^s
Declination	−13° 59′ 11.3368″
Apparent magnitude (V)	7.96^[2]
Characteristics
Evolutionary stage	Red-giant branch star
Spectral type	K0III^[3]
B−V color index	0.935^[3]
J−H color index	0.442^[2]
J−K color index	0.553^[2]
Astrometry

Radial velocity (R_v)	33.980499^[4] km/s
Proper motion (μ)	RA: -7.488^[1] mas/yr Dec.: 33.693^[1] mas/yr
Parallax (π)	8.2719 ± 0.0202 mas^[1]
Distance	394.3 ± 1.0 ly (120.9 ± 0.3 pc)
Absolute magnitude (M_V)	2.24^[a]

Details^[3]

Mass	1.52±0.03 `M`_☉
Radius	4.17+0.03 −0.07 `R`_☉
Luminosity	10.00+0.09 −0.23 `L`_☉
Surface gravity (log g)	3.375+0.021 −0.002 cgs
Temperature	5025.4+23.6 −15.5 K
Metallicity [Fe/H]	0.06±0.01 dex
Rotational velocity (v sin i)	≤2 km/s

Other designations
BD−14° 1051, Gaia DR3 2986948238799721216, GC 2232, HD 33142, HIP 23844, SAO 150161, PPM 215317, TIC 169397663, TYC 5342-891-1, GSC 05342-00891, 2MASS J05073553-1359113^[2]
Database references
SIMBAD	data

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HD 33142

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