Observation data Epoch J2000 Equinox J2000 | |
---|---|
Constellation | Virgo |
Right ascension | 13h 12m 03.54378s [1] |
Declination | −16° 11′ 54.9682″ [1] |
Apparent magnitude (V) | 5.04 [2] |
Characteristics | |
Spectral type | F5.5 V [3] |
B−V color index | 0.46 [2] |
Astrometry | |
Radial velocity (Rv) | −12.7±0.2 [4] km/s |
Proper motion (μ) |
RA: +97.32
[1]
mas/
yr Dec.: −287.65 [1] mas/ yr |
Parallax (π) | 29.49 ± 0.29 mas [1] |
Distance | 111 ± 1
ly (33.9 ± 0.3 pc) |
Absolute magnitude (MV) | 2.46±0.03 [5] |
Details [6] | |
Mass | 1.21 M☉ |
Radius | 3.0 [7] R☉ |
Luminosity | 9.45 [2] L☉ |
Surface gravity (log g) | 3.85±0.14 cgs |
Temperature | 6,346±216 K |
Metallicity [Fe/H] | −0.04±0.04 [8] dex |
Rotational velocity (v sin i) | 13.5±0.6 [5] km/s |
Age | 2.923 Gyr |
Other designations | |
Database references | |
SIMBAD | data |
53 Virginis is a single, [10] yellow-white hued star in the zodiac constellation of Virgo. It is faintly visible to the naked eye, having an apparent visual magnitude of 5.04. [2] Based upon an annual parallax shift of 29.49±0.29 mas, [1] it is located 111 light years away. The star is moving closer to the Sun with a heliocentric radial velocity of −12.7 km/s. [4] It has a relatively high rate of proper motion, traversing the celestial sphere at the rate of 284±18 mas/yr along a position angle of 162.2°. [11]
Gray et al. (2006) assigned this star a stellar classification of F5.5 V, [3] matching an ordinary F-type main-sequence star. Older studies, such as Malaroda (1975) [12] or Eggen (1955), [13] listed a class of F5 III-IV or F6 III-IV, suggesting a more evolved condition. It is spinning with a projected rotational velocity of 13.5 [5] km/s and appears to be undergoing differential rotation. [10] The star is nearly three [6] billion years old, with 1.21 [6] times the mass of the Sun and about three times the Sun's radius. [7] It is radiating over nine [2] times the Sun's luminosity from its photosphere at an effective temperature of around 6,346 K. [6]
The star has three visual companions, the nearest being a magnitude 12.5 star located at an angular separation of 104.10 ″ along a position angle of 1°, as of 2000. [14]
Observation data Epoch J2000 Equinox J2000 | |
---|---|
Constellation | Virgo |
Right ascension | 13h 12m 03.54378s [1] |
Declination | −16° 11′ 54.9682″ [1] |
Apparent magnitude (V) | 5.04 [2] |
Characteristics | |
Spectral type | F5.5 V [3] |
B−V color index | 0.46 [2] |
Astrometry | |
Radial velocity (Rv) | −12.7±0.2 [4] km/s |
Proper motion (μ) |
RA: +97.32
[1]
mas/
yr Dec.: −287.65 [1] mas/ yr |
Parallax (π) | 29.49 ± 0.29 mas [1] |
Distance | 111 ± 1
ly (33.9 ± 0.3 pc) |
Absolute magnitude (MV) | 2.46±0.03 [5] |
Details [6] | |
Mass | 1.21 M☉ |
Radius | 3.0 [7] R☉ |
Luminosity | 9.45 [2] L☉ |
Surface gravity (log g) | 3.85±0.14 cgs |
Temperature | 6,346±216 K |
Metallicity [Fe/H] | −0.04±0.04 [8] dex |
Rotational velocity (v sin i) | 13.5±0.6 [5] km/s |
Age | 2.923 Gyr |
Other designations | |
Database references | |
SIMBAD | data |
53 Virginis is a single, [10] yellow-white hued star in the zodiac constellation of Virgo. It is faintly visible to the naked eye, having an apparent visual magnitude of 5.04. [2] Based upon an annual parallax shift of 29.49±0.29 mas, [1] it is located 111 light years away. The star is moving closer to the Sun with a heliocentric radial velocity of −12.7 km/s. [4] It has a relatively high rate of proper motion, traversing the celestial sphere at the rate of 284±18 mas/yr along a position angle of 162.2°. [11]
Gray et al. (2006) assigned this star a stellar classification of F5.5 V, [3] matching an ordinary F-type main-sequence star. Older studies, such as Malaroda (1975) [12] or Eggen (1955), [13] listed a class of F5 III-IV or F6 III-IV, suggesting a more evolved condition. It is spinning with a projected rotational velocity of 13.5 [5] km/s and appears to be undergoing differential rotation. [10] The star is nearly three [6] billion years old, with 1.21 [6] times the mass of the Sun and about three times the Sun's radius. [7] It is radiating over nine [2] times the Sun's luminosity from its photosphere at an effective temperature of around 6,346 K. [6]
The star has three visual companions, the nearest being a magnitude 12.5 star located at an angular separation of 104.10 ″ along a position angle of 1°, as of 2000. [14]