HD 212710

Last updated
HD 212710
Observation data
Epoch J2000.0        Equinox J2000.0
Constellation Cepheus [1]
Right ascension 22h 13m 10.51283s [2]
Declination +86° 06′ 28.8116″ [2]
Apparent magnitude  (V)5.258±0.009 [3]
Characteristics
Spectral type B9.5 Vn [4]
U−B color index -0.11 [5]
B−V color index -0.03 [5]
Astrometry
Radial velocity (Rv)−17.80±0.49 [2] km/s
Proper motion (μ)RA: 60.554 mas/yr [2]
Dec.: 39.468 mas/yr [2]
Parallax (π)12.8648±0.1662  mas [2]
Distance 254 ± 3  ly
(78 ± 1  pc)
Absolute magnitude  (MV)0.79 [6]
Details
Mass 2.61+0.438
−0.254 [7]   M☉
Radius 2.387+0.086
−0.052 [7]   R☉
Luminosity 53.79±1.38 [2]   L☉
Surface gravity (log g)4.0991±0.0652 [7]   cgs
Temperature 10162+164.7
−134 [7]   K
Other designations
AG+85 372, BD+85 383, FK5 1648, HD 212710, HIP 109693, HR 8546, SAO 3721, 2MASS J22131056+8606287 [8]
Database references
SIMBAD data

HD 212710 is a star in Cepheus [1] with an apparent magnitude of 5.258 [3] and a spectral type of B9.5 Vn, [4] indicating that it is a B-type main sequence star, giving it a blue hue. It is about 254 light-years away from the Solar System. It has about 2.61 times the mass of the Sun, 2.387 times the radius of the Sun and is 53.79 times as luminous.

Nomenclature

This star doesn't have a Bayer or Flamsteed designation. The designation HD 212710 comes from the Henry Draper Catalogue. It is also known as BD+85 383, SAO 3721, HR 8546, or HIP 109693 from various star catalogues. [8]

Some sources identify this star with the Chinese star name Tiānhuángdàdì (Chinese :天皇大帝, "Great Emperor of Heaven" or "Tianhuang Emperor"). It is an independent constellation in the system of Chinese constellations, belonging to the Purple Forbidden enclosure. [10]

References

  1. 1 2 Roman, Nancy G. (1987). "Identification of a constellation from a position". Publications of the Astronomical Society of the Pacific. 99: 695. Bibcode:1987PASP...99..695R. doi: 10.1086/132034 . S2CID   120559848.
  2. 1 2 3 4 5 6 7 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. 1 2 Høg, E.; Fabricius, C.; Makarov, V. V.; Urdan, 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. 335: L27 –L30. Bibcode:2000A&A...355L..27H.
  4. 1 2 Egret, D.; Didelon, P.; McLean, B. J.; Russell, J. L.; Turon, C. (1992). "The TYCHO Input Catalogue. Cross- matching the Guide Star Catalog with the HIPPARCOS INCA Data Base". Astronomy and Astrophysics. 258: 217–222. Bibcode:1992A&A...258..217E.
  5. 1 2 Mallama, A. (2018). "Erratum: Sloan Magnitudes for the Brightest Stars". The Journal of the American Association of Variable Star Observers. 46 (1): 90. arXiv: 1805.09324 . Bibcode:2018JAVSO..46...90M.
  6. ↑ Anderson, E.; Francis, Ch. (2012). "XHIP: An extended hipparcos compilation". Astronomy Letters. 38 (5): 331–346. arXiv: 1108.4971 . Bibcode:2012AstL...38..331A. doi:10.1134/S1063773712050015. S2CID   255204555.
  7. 1 2 3 4 Paegert, Martin; Stassun, Keivan G.; Collins, Karen A.; Pepper, Joshua; Torres, Guillermo; Jenkins, Jon; Twicken, Joseph D.; Latham, David W. (2021). "TESS Input Catalog versions 8.1 and 8.2: Phantoms in the 8.0 Catalog and How to Handle Them". arXiv: 2108.04778 [astro-ph.EP].
  8. 1 2 "HD 212710". SIMBAD . Centre de données astronomiques de Strasbourg.
  9. ↑ Yi, Shitong (April 1981). 中西对照恒星图表[Atlas Comparing Chinese and Western Star Maps and Catalogues] (in Chinese). 科学出版社.
  10. ↑ Stellarium, citing Yi Shitong, 1981 [9]
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