Observation data Epoch J2000 Equinox J2000 | |
---|---|
Constellation | Aries |
Right ascension | 02h 48m 45.90719s [1] |
Declination | +25° 11′ 16.95410″ [1] |
Apparent magnitude (V) | 5.89 [2] (5.82 - 5.89) [3] |
Characteristics | |
Spectral type | A0 V [4] |
B−V color index | −0.033±0.005 [2] |
Variable type | α2 CVn [3] |
Astrometry | |
Radial velocity (Rv) | +13.8±2.9 [5] km/s |
Proper motion (μ) |
RA: +56.600
[1]
mas/
yr Dec.: −0.264 [1] mas/ yr |
Parallax (π) | 5.7743 ± 0.1298 mas [1] |
Distance | 560 ± 10
ly (173 ± 4 pc) |
Absolute magnitude (MV) | 0.48 [2] |
Details [6] | |
Mass | 2.74±0.09 M☉ |
Radius | 3.1 [7] R☉ |
Luminosity | 78.7+15.1 −12.7 L☉ |
Surface gravity (log g) | 4.10 [8] cgs |
Temperature | 10,304+72 −71 K |
Metallicity [Fe/H] | +0.1 [8] dex |
Rotational velocity (v sin i) | 54 km/s |
Other designations | |
Database references | |
SIMBAD | data |
VZ Arietis is single, [10] white-hued star in the northern zodiac constellation of Aries. Varying between magnitudes 5.82 and 5.89, [3] the star can be seen with the naked eye in dark, unpolluted areas. Based upon an annual parallax shift of 5.8 mas, [1] it is located 560 light years from the Sun. It is moving further away with a heliocentric radial velocity of +14 km/s. [5] The star was formerly known as 16 Trianguli, but as the star is no longer in the constellation Triangulum, this designation has fallen out of use. [11]
This is a chemically peculiar star [6] of type CP2 ( Ap star), [12] showing an anomalous abundance of silicon in its spectrum. [13] It has a stellar classification of A0 V, [4] which indicates this is an A-type main-sequence star that currently fusing hydrogen into helium in its core. This is an Alpha2 Canum Venaticorum variable [12] with 2.7 [6] times the mass of the Sun and about 3.1 [7] times the Sun's radius. It is radiating 79 times the Sun's luminosity from its photosphere at an effective temperature of 10,304 K. [6]
Observation data Epoch J2000 Equinox J2000 | |
---|---|
Constellation | Aries |
Right ascension | 02h 48m 45.90719s [1] |
Declination | +25° 11′ 16.95410″ [1] |
Apparent magnitude (V) | 5.89 [2] (5.82 - 5.89) [3] |
Characteristics | |
Spectral type | A0 V [4] |
B−V color index | −0.033±0.005 [2] |
Variable type | α2 CVn [3] |
Astrometry | |
Radial velocity (Rv) | +13.8±2.9 [5] km/s |
Proper motion (μ) |
RA: +56.600
[1]
mas/
yr Dec.: −0.264 [1] mas/ yr |
Parallax (π) | 5.7743 ± 0.1298 mas [1] |
Distance | 560 ± 10
ly (173 ± 4 pc) |
Absolute magnitude (MV) | 0.48 [2] |
Details [6] | |
Mass | 2.74±0.09 M☉ |
Radius | 3.1 [7] R☉ |
Luminosity | 78.7+15.1 −12.7 L☉ |
Surface gravity (log g) | 4.10 [8] cgs |
Temperature | 10,304+72 −71 K |
Metallicity [Fe/H] | +0.1 [8] dex |
Rotational velocity (v sin i) | 54 km/s |
Other designations | |
Database references | |
SIMBAD | data |
VZ Arietis is single, [10] white-hued star in the northern zodiac constellation of Aries. Varying between magnitudes 5.82 and 5.89, [3] the star can be seen with the naked eye in dark, unpolluted areas. Based upon an annual parallax shift of 5.8 mas, [1] it is located 560 light years from the Sun. It is moving further away with a heliocentric radial velocity of +14 km/s. [5] The star was formerly known as 16 Trianguli, but as the star is no longer in the constellation Triangulum, this designation has fallen out of use. [11]
This is a chemically peculiar star [6] of type CP2 ( Ap star), [12] showing an anomalous abundance of silicon in its spectrum. [13] It has a stellar classification of A0 V, [4] which indicates this is an A-type main-sequence star that currently fusing hydrogen into helium in its core. This is an Alpha2 Canum Venaticorum variable [12] with 2.7 [6] times the mass of the Sun and about 3.1 [7] times the Sun's radius. It is radiating 79 times the Sun's luminosity from its photosphere at an effective temperature of 10,304 K. [6]