![]() A visual band light curve for BC Canis Minoris, plotted from data presented by Tabur et al. (2009) [1] | |
Observation data Epoch J2000 Equinox J2000 | |
---|---|
Constellation | Canis Minor |
Right ascension | 07h 52m 07.19000s [2] |
Declination | 03° 16′ 38.4465″ [2] |
Apparent magnitude (V) | 6.30 [3] (6.14 to 6.42) [4] |
Characteristics | |
Evolutionary stage | AGB [5] |
Spectral type | M4/5III [6] |
B−V color index | 1.464±0.015 [3] |
Variable type | SRb [4] |
Astrometry | |
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) | 6.2916 ± 0.1748 mas [2] |
Distance | 520 ± 10
ly (159 ± 4 pc) |
Absolute magnitude (MV) | 0.36 [3] |
Details | |
Radius | 60.4+7.6 −10.3 [2] R☉ |
Luminosity | 496.7±15.9 [2] L☉ |
Temperature | 3,507+344 −201 [2] K |
Other designations | |
Database references | |
SIMBAD | data |
BC Canis Minoris is a variable star in the equatorial constellation of Canis 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]
![]() A visual band light curve for BC Canis Minoris, plotted from data presented by Tabur et al. (2009) [1] | |
Observation data Epoch J2000 Equinox J2000 | |
---|---|
Constellation | Canis Minor |
Right ascension | 07h 52m 07.19000s [2] |
Declination | 03° 16′ 38.4465″ [2] |
Apparent magnitude (V) | 6.30 [3] (6.14 to 6.42) [4] |
Characteristics | |
Evolutionary stage | AGB [5] |
Spectral type | M4/5III [6] |
B−V color index | 1.464±0.015 [3] |
Variable type | SRb [4] |
Astrometry | |
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) | 6.2916 ± 0.1748 mas [2] |
Distance | 520 ± 10
ly (159 ± 4 pc) |
Absolute magnitude (MV) | 0.36 [3] |
Details | |
Radius | 60.4+7.6 −10.3 [2] R☉ |
Luminosity | 496.7±15.9 [2] L☉ |
Temperature | 3,507+344 −201 [2] K |
Other designations | |
Database references | |
SIMBAD | data |
BC Canis Minoris is a variable star in the equatorial constellation of Canis 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]