Beta Canis Minoris
Star in the constellation Canis Minor / From Wikipedia, the free encyclopedia
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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.
Quick Facts Observation data Epoch J2000 Equinox J2000, Constellation ...
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] |
Distance | 160 ± 10 ly (49 ± 3 pc) |
Absolute magnitude (MV) | −0.59[7] |
Details | |
Mass | 3.5[3] M☉ |
Radius | 3.5[8] R☉ |
Luminosity | 195[3] L☉ |
Surface gravity (log g) | 3.51[8] cgs |
Temperature | 11,772[8] K |
Rotational velocity (v sin i) | 210[9] km/s |
Age | 160+20 −60[10] Myr |
Other designations | |
Database references | |
SIMBAD | data |
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