BC Canis Minoris
Avisual band light curve for BC Canis Minoris, plotted from data presented by Tabur et al. (2009)[1]
07h52m 07.19000s[2]
03° 16′ 38.4465″[2]
Characteristics
M4/5III[6]
B−V color index
1.464±0.015[3]
Radial velocity (Rv)
−66.91±0.24[3] km/s
Proper motion (μ)
RA: +49.415[2] mas/yr
Dec.: −78.835[2] mas/yr
Parallax (π)
Absolute magnitude (MV)
0.36[3]
Details
Database references
BC Canis Minoris is a variable star in the equatorial constellationofCanis Minor. It has a reddish hue and is just barely visible to the naked eye with an apparent visual magnitude that fluctuates around 6.30.[3] The distance to this object is approximately 520 light years based on parallax,[2] but it is drifting closer with a radial velocity of −67 km/s.[3]
This is an aging red giant star currently on the asymptotic giant branch[5] with a stellar classification of M4/5III.[6] It is a semi-regular variable of subtype SRb[4] with measured pulsation periods of 27.7, 143.3 and 208.3 days, and an average visual magnitude of 6.30.[8] With the supply of hydrogen at its core exhausted, it has cooled and expanded off the main sequence and now has around 60[2] times the girth of the Sun. On average, the star is radiating about 497[2] times the luminosity of the Sun from its swollen photosphere at an effective temperature of 3,507 K.[2]
Other
