HD 10939

HD 10939
Observation data
Epoch J2000.0      Equinox ICRS
Constellation Eridanus
Right ascension 01h 46m 06.3s
Declination −53° 31′ 19″
Apparent magnitude (V) 5.03
Characteristics
Evolutionary stage main sequence
Spectral type A1V
U−B color index 0.05
B−V color index 0.04
Astrometry
Proper motion (μ) RA: +126.534 mas/yr
Dec.: +59.909 mas/yr
Parallax (π)16.0575±0.0693 mas
Distance203.1 ± 0.9 ly
(62.3 ± 0.3 pc)
Absolute magnitude (MV)+1.08
Details
Mass2.3 M☉
Radius2.27 R☉
Luminosity32 L☉
Surface gravity (log g)4.09 cgs
Temperature9,110 K
Rotation0.69 days
Rotational velocity (v sin i)72.8 km/s
Age346 Myr
Other designations
CPD−54°377, SAO 232520, HD 10939, HR 520, q2 Eridani
Database references
SIMBADdata

HD 10939 is a star with an apparent magnitude of 5.03, making it visible to the naked eye. It glows white with a spectral type of A1V, and has a surface temperature of around 7,500 to 10,000 K.

References

  1. 1 2 Anderson, E.; Francis, Ch. (2012). "XHIP: An extended hipparcos compilation". Astronomy Letters. 38 (5): 331. arXiv:1108.4971. Bibcode:2012AstL...38..331A. doi:10.1134/S1063773712050015. XHIP record for this object at VizieR.
  2. 1 2 3 4 5 6 Vallenari, A.; et al. (Gaia collaboration) (2023). "Gaia Data Release 3. Summary of the content and survey properties". Astronomy and Astrophysics. 674: A1. arXiv:2208.00211. Bibcode:2023A&A...674A...1G. doi:10.1051/0004-6361/202243940. S2CID 244398875. Gaia DR3 record for this source at VizieR.
  3. ↑ Høg, E.; Fabricius, C.; Makarov, V. V.; Urban, S.; Corbin, T.; Wycoff, G.; Bastian, U.; Schwekendiek, P.; Wicenec, A. (2000). "The Tycho-2 catalogue of the 2.5 million brightest stars". Astronomy and Astrophysics. 355. Bibcode:2000A&A...355L..27H.
  4. ↑ Houk, N.; Cowley, A. P. (1975). University of Michigan Catalogue of two-dimensional spectral types for the HD stars. Volume I. Declinations -90_ to -53_ƒ0. Bibcode:1975mcts.book.....H.
  5. 1 2 3 4 "HD 10939". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2025-06-30.
  6. 1 2 3 "VizieR Detailed Page". Archived from the original on 2016-03-05. Retrieved 2012-07-13.
  7. 1 2 3 4 5 Stassun, Keivan G.; et al. (2019). "The Revised TESS Input Catalog and Candidate Target List". The Astronomical Journal. 158 (4): 138. arXiv:1905.10694. Bibcode:2019AJ....158..138S. doi:10.3847/1538-3881/ab3467.
  8. 1 2 Balona, L. A. (2019). "Evidence for spots on hot stars suggests major revision of stellar physics". Monthly Notices of the Royal Astronomical Society. 490 (2): 2112. arXiv:1910.01584. Bibcode:2019MNRAS.490.2112B. doi:10.1093/mnras/stz2808.
  9. ↑ Meshkat, Tiffany; Mawet, Dimitri; Bryan, Marta L.; Hinkley, Sasha; Bowler, Brendan P.; Stapelfeldt, Karl R.; Batygin, Konstantin; Padgett, Deborah; Morales, Farisa Y.; Serabyn, Eugene; Christiaens, Valentin; Brandt, Timothy D.; Wahhaj, Zahed (2017). "A Direct Imaging Survey of Spitzer-detected Debris Disks: Occurrence of Giant Planets in Dusty Systems". The Astronomical Journal. 154 (6): 245. arXiv:1710.04185. Bibcode:2017AJ....154..245M. doi:10.3847/1538-3881/aa8e9a.