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B1 Hydrae

In today's article we are going to delve into the fascinating world of B1 Hydrae. Over the years, B1 Hydrae has proven to be a topic of interest to a wide variety of people. From his impact on society to his significance in popular culture, B1 Hydrae has left an indelible mark on the world. Through this article, we will explore different aspects of B1 Hydrae, from its origin and evolution to its relevance in today's world. Get ready to immerse yourself in a journey of knowledge and inspiration about B1 Hydrae!

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b1 Hydrae
Observation data
Epoch J2000.0      Equinox J2000.0
Constellation Hydra[1]
Right ascension 10h 46m 52.05s[2]
Declination −17° 17′ 48.7″[2]
Apparent magnitude (V) 5.42[3]
Characteristics
Evolutionary stage main sequence[4]
Spectral type A3V[3]
U−B color index +0.14[3]
B−V color index +0.11[3]
R−I color index +0.04[3]
Astrometry
Radial velocity (Rv)+0.23±0.99[2] km/s
Proper motion (μ) RA: −15.864[2] mas/yr
Dec.: −18.786[2] mas/yr
Parallax (π)17.7995±0.1794 mas[2]
Distance183 ± 2 ly
(56.2 ± 0.6 pc)
Absolute magnitude (MV)+1.45[5]
Details
Mass2.09[6] M☉
Radius1.94[6] R☉
Luminosity17.2[6] L☉
Surface gravity (log g)4.18[6] cgs
Temperature8,433[6] K
Rotational velocity (v sin i)96[4] km/s
Age652[7] Myr
Other designations
3 Crt, BD−16°3124, HD 93397, HR 4214, SAO 156221[8]
Database references
SIMBADdata

b1 Hydrae is a main-sequence star in the constellation of Hydra with an apparent magnitude of 5.42.

References

  1. ^ Roman, Nancy G. (1987). "Identification of a constellation from a position". Publications of the Astronomical Society of the Pacific. 99 (617): 695. Bibcode:1987PASP...99..695R. doi:10.1086/132034. Constellation record for this object at VizieR.
  2. ^ a b c d e f 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. ^ a b c d e "VizieR Detailed Page". Archived from the original on 2016-03-05. Retrieved 2012-07-13.
  4. ^ a b Zorec, J.; Royer, F. (2012). "Rotational velocities of A-type stars. IV. Evolution of rotational velocities". Astronomy and Astrophysics. 537: A120. arXiv:1201.2052. Bibcode:2012A&A...537A.120Z. doi:10.1051/0004-6361/201117691.
  5. ^ 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.
  6. ^ a b c d e 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.
  7. ^ Gontcharov, G. A. (2012). "Dependence of kinematics on the age of stars in the solar neighborhood". Astronomy Letters. 38 (12): 771. arXiv:1606.08814. Bibcode:2012AstL...38..771G. doi:10.1134/S1063773712120031.
  8. ^ "3 Crt". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2025-11-13.


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