Gamma Canis Majoris

"Muliphen" redirects here. For the cargo ship, see USS Muliphen.
γ Canis Majoris
Location of γ Canis Majoris (circled)
Observation data
Epoch J2000.0      Equinox J2000.0
Constellation Canis Major
Right ascension 07h 03m 45.49305s[1]
Declination −15° 37′ 59.8300″[1]
Apparent magnitude (V) +4.10[2]
Characteristics
Spectral type B8II[3]
U−B color index −0.45[2]
B−V color index −0.13[2]
Astrometry
Radial velocity (Rv)+32.0[4] km/s
Proper motion (μ) RA: −0.14[1] mas/yr
Dec.: −11.36[1] mas/yr
Parallax (π)7.38 ± 0.21 mas[1]
Distance440 ± 10 ly
(136 ± 4 pc)
Absolute magnitude (MV)−1.4[5]
Details
Radius5.6[6] R☉
Luminosity715[7] L☉
Surface gravity (log g)3.5[6] cgs
Temperature13,596[6] K
Metallicity [Fe/H]−0.24[8] dex
Rotation6.16 d[9]
Rotational velocity (v sin i)30[10] km/s
Other designations
Muliphein, Muliphen, 23 Canis Majoris, BD−15°1625, FK5 271, HD 53244, HR 2657, HIP 34045, SAO 152303
Database references
SIMBADdata

Gamma Canis Majoris (γ Canis Majoris, abbreviated Gamma CMa, γ CMa), also named Muliphein /ˈmjuːlɪfeɪn/,[11] is a star in the constellation of Canis Major. It is unclear exactly why this relatively faint star was given the 'gamma' designation, but possibly because it is in the same part of the constellation as Sirius (alpha) and Mirzam (beta).

  1. ^ a b c d e Cite error: The named reference van Leeuwen2007 was invoked but never defined (see the help page).
  2. ^ a b c Cite error: The named reference apjss52_7 was invoked but never defined (see the help page).
  3. ^ Cite error: The named reference msom4 was invoked but never defined (see the help page).
  4. ^ Cite error: The named reference Kharchenko was invoked but never defined (see the help page).
  5. ^ Cite error: The named reference jaschek was invoked but never defined (see the help page).
  6. ^ a b c Cite error: The named reference mnras189_601 was invoked but never defined (see the help page).
  7. ^ 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, S2CID 119257644.
  8. ^ Cite error: The named reference apj145_141 was invoked but never defined (see the help page).
  9. ^ Cite error: The named reference aa547_A90 was invoked but never defined (see the help page).
  10. ^ Cite error: The named reference apj573_1_359 was invoked but never defined (see the help page).
  11. ^ "IAU Catalog of Star Names". Retrieved 28 July 2016.