HD 37320

HD 37320 (HR 1920, HIP 26487) is a star located in the constellation Orion.[a] It is an evolved blue giant star, based on its spectral type of B8III.[1] The distance to HD 37320 is calculated at 285.5 parsecs (931 light-years), based on a parallax from Gaia EDR3.[2] The apparent magnitude of the star is 5.852,[1] which is above the limiting magnitude for naked-eye vision (6.5m), making it faintly visible to the naked eye.[3]

HD 37320
Observation data
Epoch J2000      Equinox J2000
Constellation Orion[a]
Right ascension 05h 38m 01.12s[1]
Declination +07° 32′ 29.1″[1]
Apparent magnitude (V) 5.852±0.009[1]
Characteristics
Evolutionary stage Blue giant
Spectral type B7III[1]
Apparent magnitude (U) 5.44[1]
Apparent magnitude (B) 5.788[1]
Apparent magnitude (G) 5.844[1]
Apparent magnitude (J) 5.933[1]
Apparent magnitude (H) 5.997[1]
Apparent magnitude (K) 5.964[1]
Astrometry
Radial velocity (Rv)20.1±1[4] km/s
Proper motion (μ) RA: 10.602 mas/yr[4]
Dec.: -15.499 mas/yr[4]
Parallax (π)3.5025 ± 0.0568 mas[2]
Distance930 ± 20 ly
(286 ± 5 pc)
Absolute magnitude (MV)-1.43[5]
Details
Mass5.644±0.282[6] M☉
Radius4.696[b] R☉
Luminosity218.78[8] L☉
Temperature12,303[8] K
Rotational velocity (v sin i)25[9] km/s
Other designations
BD+07 953, Gaia DR2 3334369174165649536, Gaia DR3 3334369174165649536, HIP 26487, HR 1920, SAO 112979, PPM 149251, TIC 144611068, TYC 714-524-1, GSC 00714-00524, 2MASS J05380112+0732292
Database references
SIMBADdata


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  1. ^ a b c d e f g h i j k l m "HD 37320". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2024-05-05.
  2. ^ a b c Brown, A. G. A.; et al. (Gaia collaboration) (2021). "Gaia Early Data Release 3: Summary of the contents and survey properties". Astronomy & Astrophysics. 649: A1. arXiv:2012.01533. Bibcode:2021A&A...649A...1G. doi:10.1051/0004-6361/202039657. S2CID 227254300. (Erratum: doi:10.1051/0004-6361/202039657e). Gaia EDR3 record for this source at VizieR.
  3. ^ "University Lowbrow Astronomers Naked Eye Observer's Guide". websites.umich.edu. Retrieved 2024-05-05.
  4. ^ a b Cite error: The named reference brandt was invoked but never defined (see the help page).
  5. ^ Cite error: The named reference in-the-sky was invoked but never defined (see the help page).
  6. ^ Cite error: The named reference kervella was invoked but never defined (see the help page).
  7. ^ Cite error: The named reference Challouf was invoked but never defined (see the help page).
  8. ^ a b Cite error: The named reference Simon-Diaz was invoked but never defined (see the help page).
  9. ^ Cite error: The named reference helmut was invoked but never defined (see the help page).