Beta Canis Minoris

Starbox begin
name=Beta Canis Minoris Starbox image


caption=Position of Beta Canis Minoris. Starbox observe
epoch=J2000
ra=07^h 27^m 09.0^s
dec=+08° 17′ 22″
appmag_v=2.89 (2.84–2.92)
constell=Canis Minor Starbox character
class=B8Ve
b-v=-0.09
u-b=-0.28
variable=γ Cas Starbox astrometry
radial_v=+22
prop_mo_ra=-50.28
prop_mo_dec=-38.45
parallax=19.16
p_error=0.85
dist_ly=170
dist_pc=52.2
absmag_v=-0.70 Starbox detail
mass=3
radius=4
luminosity=250
temperature=11,500
metal=?
rotation=250 km/s
age=? Starbox catalog
names=Gomeisa, Algomeyla, Gomelza, 3 Canis Minoris, HR 2845, BD+08°1774, HD 58715, SAO 115456, FK5 285, IRAS 07244+0823, HIP 36188, GC 9947, CCDM 07272+0818, TD1 10116

Beta Canis Minoris (β CMi / β Canis Minoris) is a star in the constellation of Canis Minor. It also has the traditional name Gomeisa.

Beta Canis Minoris is a hot, B8-class main sequence star of apparent magnitude 2.9, easily visible to the naked eye. It is slightly variable, and belongs to the Gamma Cassiopeiae category of variable stars. This star is rotating rapidly and is surrounded by a disk of material, which the emissions are heating up.

The traditional name is supposed to be from an Arabic word "al-ghumaisa’" "the bleary-eyed one", cognate with the modern Arabic name for Procyon, غموص "ghumūş".

References

* [http://simbad.u-strasbg.fr/sim-id.pl?protocol=html&Ident=*+BET+CMI&NbIdent=1&Radius=10&Radius.unit=arcmin&CooFrame=FK5&CooEpoch=2000&CooEqui=2000&output.max=all&o.catall=on&output.mesdisp=N&Bibyear1=1983&Bibyear2=2006&Frame1=FK5&Frame2=FK4&Frame3=G&Equi1=2000.0&Equi2=1950.0&Equi3=2000.0&Epoch1=2000.0&Epoch2=1950.0&Epoch3=2000.0 SIMBAD Query Result]
* [http://www.alcyone.de/SIT/mainstars/SIT000504.htm Alcyone emphemeris entry]
* [http://www.astro.uiuc.edu/~kaler/sow/gomeisa.html Gomeisa] by Professor Jim Kaler.