HD 38529 information

HD 38529 A/B
Observation data; Epoch J2000.0 Equinox J2000.0
Constellation	Orion
	HD 38529 A
Right ascension	05h 46m 34.91314s
Declination	+01° 10′ 05.5029″
Apparent magnitude (V)	+5.94
	HD 38529 B
Right ascension	05h 46m 19.37663s
Declination	+01° 12′ 47.2640″
Apparent magnitude (V)	+13.35
Characteristics
Spectral type	G4IV / M3.0V
U−B color index	? / ?
B−V color index	0.773 / 0.46
Variable type	none / ?
Astrometry
HD 38529 A
Radial velocity (Rv)	30.19±0.12 km/s
Proper motion (μ)	RA: −77.806±0.041 mas/yr ; Dec.: −141.363±0.038 mas/yr
Parallax (π)	23.5714 ± 0.0422 mas
Distance	138.4 ± 0.2 ly ; (42.42 ± 0.08 pc)
Absolute magnitude (MV)	+2.81
HD 38529 B
Radial velocity (Rv)	30.94±0.43 km/s
Proper motion (μ)	RA: −78.612±0.017 mas/yr ; Dec.: −142.084±0.013 mas/yr
Parallax (π)	23.7139 ± 0.0168 mas
Distance	137.54 ± 0.10 ly ; (42.17 ± 0.03 pc)
Absolute magnitude (MV)	+10.23
Details
HD 38529 A
Mass	1.479±0.037 M☉
Radius	2.678±0.026 R☉
Luminosity	6.16±0.15 L☉
Surface gravity (log g)	3.83±0.06 cgs
Temperature	5619±44 K
Metallicity [Fe/H]	0.38±0.03 dex
Rotational velocity (v sin i)	3.20±0.50 km/s
Age	3.07±0.39 Gyr
Other designations
	RAG 1, WDS J05466+0110AB
	HD 38529 A: BD+01°1126, HIP 27253, HR 1988, WDS J05466+0110A
	HD 38529 B: WDS J05466+0110B, LP 598-99, 2MASS J05461937+0112471
Database references
SIMBAD	data

HD 38529 (138 G. Orionis) is a binary star approximately 138 light-years away in the constellation of Orion.

^ ^a ^b ^c ^d ^e Cite error: The named reference Gaia DR3 A was invoked but never defined (see the help page).
^ ^a ^b ^c ^d ^e Cite error: The named reference Gaia DR3 B was invoked but never defined (see the help page).
^ Cite error: The named reference Henry2013 was invoked but never defined (see the help page).
^ Ball, Warrick H.; Chaplin, William J.; Nielsen, Martin B.; González-Cuesta, Lucia; Mathur, Savita; Santos, Ângela R G.; García, Rafael; Buzasi, Derek; Mosser, Benoît; Deal, Morgan; Stokholm, Amalie; Mosumgaard, Jakob Rørsted; Silva Aguirre, Victor; Nsamba, Benard; Campante, Tiago; Cunha, Margarida S.; Ong, Joel; Basu, Sarbani; Örtel, Sibel; Çelik Orhan, Z.; Yıldız, Mutlu; Stassun, Keivan; Kane, Stephen R.; Huber, Daniel (2020), "Robust asteroseismic properties of the bright planet host HD 38529", Monthly Notices of the Royal Astronomical Society, 499 (4): 6084–6093, arXiv:2010.07323, Bibcode:2020MNRAS.499.6084B, doi:10.1093/mnras/staa3190, S2CID 222378164
^ Cite error: The named reference Simbad was invoked but never defined (see the help page).
^ Cite error: The named reference Simbad for A was invoked but never defined (see the help page).
^ Cite error: The named reference Simbad for B was invoked but never defined (see the help page).

Observation data Epoch J2000.0 Equinox J2000.0
Constellation	Orion
HD 38529 A
Right ascension	05^h 46^m 34.91314^s^[1]
Declination	+01° 10′ 05.5029″^[1]
Apparent magnitude (V)	+5.94
HD 38529 B
Right ascension	05^h 46^m 19.37663^s^[2]
Declination	+01° 12′ 47.2640″^[2]
Apparent magnitude (V)	+13.35
Characteristics
Spectral type	G4IV / M3.0V
U−B color index	? / ?
B−V color index	0.773 / 0.46
Variable type	none / ?
Astrometry
HD 38529 A
Radial velocity (R_v)	30.19±0.12^[1] km/s
Proper motion (μ)	RA: −77.806±0.041 mas/yr^[1] Dec.: −141.363±0.038 mas/yr^[1]
Parallax (π)	23.5714 ± 0.0422 mas^[1]
Distance	138.4 ± 0.2 ly (42.42 ± 0.08 pc)
Absolute magnitude (M_V)	+2.81
HD 38529 B
Radial velocity (R_v)	30.94±0.43^[2] km/s
Proper motion (μ)	RA: −78.612±0.017 mas/yr^[2] Dec.: −142.084±0.013 mas/yr^[2]
Parallax (π)	23.7139 ± 0.0168 mas^[2]
Distance	137.54 ± 0.10 ly (42.17 ± 0.03 pc)
Absolute magnitude (M_V)	+10.23
Details^[3]^[4]
HD 38529 A
Mass	1.479±0.037 `M`_☉
Radius	2.678±0.026 `R`_☉
Luminosity	6.16±0.15 `L`_☉
Surface gravity (log g)	3.83±0.06 cgs
Temperature	5619±44 K
Metallicity [Fe/H]	0.38±0.03 dex
Rotational velocity (v sin i)	3.20±0.50 km/s
Age	3.07±0.39 Gyr

Other designations
RAG 1, WDS J05466+0110AB^[5]
HD 38529 A: BD+01°1126, HIP 27253, HR 1988, WDS J05466+0110A^[6]
HD 38529 B: WDS J05466+0110B, LP 598-99, 2MASS J05461937+0112471^[7]
Database references
SIMBAD	data

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