Observation data Epoch J2000 Equinox J2000 | |
---|---|
Constellation | Canes Venatici |
Right ascension | 13h 51m 47.47504s [2] |
Declination | +34° 26′ 39.2474″ [2] |
Apparent magnitude (V) | 4.76 [3] (4.73 – 4.85) [4] |
Characteristics | |
Spectral type | M3- IIIa [5] |
B−V color index | 1.611±0.006 [3] |
Variable type | Lb [4] |
Astrometry | |
Radial velocity (Rv) | −44.21±0.25 [3] km/s |
Proper motion (μ) |
RA: −20.477
[2]
mas/
yr Dec.: −31.626 [2] mas/ yr |
Parallax (π) | 5.2734 ± 0.2529 mas [2] |
Distance | 620 ± 30
ly (190 ± 9 pc) |
Absolute magnitude (MV) | −1.56 [3] |
Details | |
Mass | 2.18±0.16 [6] M☉ |
Radius | 117.41+4.25 −4.57 [6] R☉ |
Luminosity | 2,387±213 [6] L☉ |
Surface gravity (log g) | 0.98±0.30 [7] cgs |
Temperature | 3,529±25 [7] K |
Metallicity [Fe/H] | −0.09±0.11 [7] dex |
Age | 1.11±0.21 [6] Gyr |
Other designations | |
Database references | |
SIMBAD | data |
AW Canum Venaticorum is a variable star [4] in the constellation Canes Venatici. It is visible to the naked eye with a nominal apparent visual magnitude of 4.76. [3] The distance to this star, as measured from its annual parallax shift of 5.3 mas, [2] is around 620 light years. It is moving closer with a heliocentric radial velocity of −44 km/s. [3]
At the age of 1.1 billion years, [6] this is an evolved red giant star with a stellar classification of M3- IIIa. [5] It is a slow irregular variable of type Lb, with a brightness that ranges between magnitudes 4.73 and 4.85. [4] The star has 2.2 [6] times the mass of the Sun and has expanded to 117 [6] times the Sun's radius. It is radiating 2,387 [6] times the Sun's luminosity from its enlarged photosphere at an effective temperature of 3,529 K. [7]
Observation data Epoch J2000 Equinox J2000 | |
---|---|
Constellation | Canes Venatici |
Right ascension | 13h 51m 47.47504s [2] |
Declination | +34° 26′ 39.2474″ [2] |
Apparent magnitude (V) | 4.76 [3] (4.73 – 4.85) [4] |
Characteristics | |
Spectral type | M3- IIIa [5] |
B−V color index | 1.611±0.006 [3] |
Variable type | Lb [4] |
Astrometry | |
Radial velocity (Rv) | −44.21±0.25 [3] km/s |
Proper motion (μ) |
RA: −20.477
[2]
mas/
yr Dec.: −31.626 [2] mas/ yr |
Parallax (π) | 5.2734 ± 0.2529 mas [2] |
Distance | 620 ± 30
ly (190 ± 9 pc) |
Absolute magnitude (MV) | −1.56 [3] |
Details | |
Mass | 2.18±0.16 [6] M☉ |
Radius | 117.41+4.25 −4.57 [6] R☉ |
Luminosity | 2,387±213 [6] L☉ |
Surface gravity (log g) | 0.98±0.30 [7] cgs |
Temperature | 3,529±25 [7] K |
Metallicity [Fe/H] | −0.09±0.11 [7] dex |
Age | 1.11±0.21 [6] Gyr |
Other designations | |
Database references | |
SIMBAD | data |
AW Canum Venaticorum is a variable star [4] in the constellation Canes Venatici. It is visible to the naked eye with a nominal apparent visual magnitude of 4.76. [3] The distance to this star, as measured from its annual parallax shift of 5.3 mas, [2] is around 620 light years. It is moving closer with a heliocentric radial velocity of −44 km/s. [3]
At the age of 1.1 billion years, [6] this is an evolved red giant star with a stellar classification of M3- IIIa. [5] It is a slow irregular variable of type Lb, with a brightness that ranges between magnitudes 4.73 and 4.85. [4] The star has 2.2 [6] times the mass of the Sun and has expanded to 117 [6] times the Sun's radius. It is radiating 2,387 [6] times the Sun's luminosity from its enlarged photosphere at an effective temperature of 3,529 K. [7]