Observation data Epoch J2000 Equinox J2000 | |
---|---|
Constellation | Corvus |
Right ascension | 12h 41m 15.9528s [2] |
Declination | −13° 00′ 50.044″ [3] |
Apparent magnitude (V) | 5.27 [3] |
Characteristics | |
Spectral type | F5IV [3] |
U−B color index | +0.10 [4] |
B−V color index | +0.42 [4] |
Astrometry | |
Radial velocity (Rv) | -19.0 [5] km/s |
Proper motion (μ) |
RA: -117.92
[2]
mas/
yr Dec.: 7.86 [2] mas/ yr |
Parallax (π) | 11.72 ± 1.90 mas [2] |
Distance | approx. 280
ly (approx. 90 pc) |
Other designations | |
Database references | |
SIMBAD | data |
VV Corvi (abbreviated as VV Crv) is a close spectroscopic binary in the constellation Corvus. It is also an eclipsing binary, varying from magnitude 5.19 to 5.34 over 3.145 days. [6] The two stars orbit each other with a period of 1.46 days and an eccentricity of 0.088. [7] The mass ratio of the two stars is 0.775±0.024. [8] The primary is 1.978 ± 0.010 times as massive as the Sun, 18.253 ± 2.249 its luminosity and has 3.375 ± 0.010 the Sun's radius. The secondary is 1.513 ± 0.008 times as massive as the Sun, 4.745 ± 0.583 its luminosity and has 1.650 ± 0.008 the Sun's radius. Both are yellow-white main sequence stars of spectral type F5V, though the primary has begun expanding and cooling as it nears the end of its time on the main sequence. [9] A tertiary companion was discovered during the Two Micron All-Sky Survey. [10]
The system shares a common proper motion with HR 4822, which is 5"2 away. [9]
Observation data Epoch J2000 Equinox J2000 | |
---|---|
Constellation | Corvus |
Right ascension | 12h 41m 15.9528s [2] |
Declination | −13° 00′ 50.044″ [3] |
Apparent magnitude (V) | 5.27 [3] |
Characteristics | |
Spectral type | F5IV [3] |
U−B color index | +0.10 [4] |
B−V color index | +0.42 [4] |
Astrometry | |
Radial velocity (Rv) | -19.0 [5] km/s |
Proper motion (μ) |
RA: -117.92
[2]
mas/
yr Dec.: 7.86 [2] mas/ yr |
Parallax (π) | 11.72 ± 1.90 mas [2] |
Distance | approx. 280
ly (approx. 90 pc) |
Other designations | |
Database references | |
SIMBAD | data |
VV Corvi (abbreviated as VV Crv) is a close spectroscopic binary in the constellation Corvus. It is also an eclipsing binary, varying from magnitude 5.19 to 5.34 over 3.145 days. [6] The two stars orbit each other with a period of 1.46 days and an eccentricity of 0.088. [7] The mass ratio of the two stars is 0.775±0.024. [8] The primary is 1.978 ± 0.010 times as massive as the Sun, 18.253 ± 2.249 its luminosity and has 3.375 ± 0.010 the Sun's radius. The secondary is 1.513 ± 0.008 times as massive as the Sun, 4.745 ± 0.583 its luminosity and has 1.650 ± 0.008 the Sun's radius. Both are yellow-white main sequence stars of spectral type F5V, though the primary has begun expanding and cooling as it nears the end of its time on the main sequence. [9] A tertiary companion was discovered during the Two Micron All-Sky Survey. [10]
The system shares a common proper motion with HR 4822, which is 5"2 away. [9]