HD 38529

HD 38529 A/B
Observation data
Epoch J2000.0      Equinox J2000.0
Constellation Orion
HD 38529 A
Right ascension 05h 46m 34.91314s[1]
Declination +01° 10′ 05.5029″[1]
Apparent magnitude (V) +5.94
HD 38529 B
Right ascension 05h 46m 19.37663s[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 (Rv)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]
Distance138.4 ± 0.2 ly
(42.42 ± 0.08 pc)
Absolute magnitude (MV)+2.81
HD 38529 B
Radial velocity (Rv)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]
Distance137.54 ± 0.10 ly
(42.17 ± 0.03 pc)
Absolute magnitude (MV)+10.23
Details[3][4]
HD 38529 A
Mass1.479±0.037 M☉
Radius2.678±0.026 R☉
Luminosity6.16±0.15 L☉
Surface gravity (log g)3.83±0.06 cgs
Temperature5619±44 K
Metallicity [Fe/H]0.38±0.03 dex
Rotational velocity (v sin i)3.20±0.50 km/s
Age3.07±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
SIMBADdata

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

  1. ^ a b c d e Cite error: The named reference Gaia DR3 A was invoked but never defined (see the help page).
  2. ^ a b c d e Cite error: The named reference Gaia DR3 B was invoked but never defined (see the help page).
  3. ^ Cite error: The named reference Henry2013 was invoked but never defined (see the help page).
  4. ^ 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
  5. ^ Cite error: The named reference Simbad was invoked but never defined (see the help page).
  6. ^ Cite error: The named reference Simbad for A was invoked but never defined (see the help page).
  7. ^ Cite error: The named reference Simbad for B was invoked but never defined (see the help page).