Beta Canis Minoris

Beta Canis Minoris

Position of Beta Canis Minoris
Observation data
Epoch J2000      Equinox J2000
Constellation Canis Minor
Right ascension 07h 27m 09.04174s[1]
Declination +08° 17′ 21.5368″[1]
Apparent magnitude (V) 2.84–2.92[2]
Characteristics
Spectral type B8 Ve[3]
U−B color index −0.28[4]
B−V color index −0.09[4]
Variable type γ Cas[2] + SPBe[3]
Astrometry
Radial velocity (Rv)+22[5] km/s
Proper motion (μ) RA: −59.375 ± 1.708[6] mas/yr
Dec.: −35.010 ± 1.368[6] mas/yr
Parallax (π)20.3535 ± 1.2220 mas[6]
Distance160 ± 10 ly
(49 ± 3 pc)
Absolute magnitude (MV)−0.59[7]
Details
Mass3.5[3] M☉
Radius3.5[8] R☉
Luminosity195[3] L☉
Surface gravity (log g)3.51[8] cgs
Temperature11,772[8] K
Rotational velocity (v sin i)210[9] km/s
Age160+20
−60[10] Myr
Other designations
Gomeisa, Algomeyla, Gomelza, 3 Canis Minoris, BD+08°1774, FK5 285, HD 58715, HIP 36188, HR 2845, IRAS 07244+0823, SAO 115456[11]
Database references
SIMBADdata

Beta Canis Minoris (β Canis Minoris, abbreviated Beta CMi, β CMi), also named Gomeisa /ɡɒˈmaɪzə/,[12][13] is a star in the constellation of Canis Minor. In the night sky it is notable for its proximity to the prominent star Procyon.

  1. ^ a b Cite error: The named reference aaa474_2_653 was invoked but never defined (see the help page).
  2. ^ a b Cite error: The named reference gcvs was invoked but never defined (see the help page).
  3. ^ a b c d Cite error: The named reference apj654_1_544 was invoked but never defined (see the help page).
  4. ^ a b Cite error: The named reference clpl4_99 was invoked but never defined (see the help page).
  5. ^ Cite error: The named reference gcsrv was invoked but never defined (see the help page).
  6. ^ a b c Brown, A. G. A.; et al. (Gaia collaboration) (August 2018). "Gaia Data Release 2: Summary of the contents and survey properties". Astronomy & Astrophysics. 616. A1. arXiv:1804.09365. Bibcode:2018A&A...616A...1G. doi:10.1051/0004-6361/201833051. Gaia DR2 record for this source at VizieR.
  7. ^ Cite error: The named reference Anderson2012 was invoked but never defined (see the help page).
  8. ^ a b c Cite error: The named reference aaa505_2_687 was invoked but never defined (see the help page).
  9. ^ Cite error: The named reference apj573_1_359 was invoked but never defined (see the help page).
  10. ^ Cite error: The named reference apj736_2_89 was invoked but never defined (see the help page).
  11. ^ Cite error: The named reference SIMBAD was invoked but never defined (see the help page).
  12. ^ Kunitzsch, Paul; Smart, Tim (2006). A Dictionary of Modern star Names: A Short Guide to 254 Star Names and Their Derivations (2nd rev. ed.). Cambridge, Massachusetts: Sky Pub. ISBN 978-1-931559-44-7.
  13. ^ "IAU Catalog of Star Names". Retrieved 28 July 2016.