VZ Arietis information

VZ Arietis
Observation data; Epoch J2000 Equinox J2000
Constellation	Aries
Right ascension	02h 48m 45.90719s
Declination	+25° 11′ 16.95410″
Apparent magnitude (V)	5.89 (5.82 - 5.89)
Characteristics
Spectral type	A0 V
B−V color index	−0.033±0.005
Variable type	α2 CVn
Astrometry
Radial velocity (Rv)	+13.8±2.9 km/s
Proper motion (μ)	RA: +56.600 mas/yr ; Dec.: −0.264 mas/yr
Parallax (π)	5.7743 ± 0.1298 mas
Distance	560 ± 10 ly ; (173 ± 4 pc)
Absolute magnitude (MV)	0.48
Details
Mass	2.74±0.09 M☉
Radius	3.1 R☉
Luminosity	78.7+15.1; −12.7 L☉
Surface gravity (log g)	4.10 cgs
Temperature	10,304+72; −71 K
Metallicity [Fe/H]	+0.1 dex
Rotational velocity (v sin i)	54 km/s
Other designations
	16 Trianguli, VZ Arietis, BD+24°396, FK5 5868, HD 17471, HIP 13121, HR 830, SAO 75588
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]

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^ ^a ^b Cite error: The named reference Cowley1969 was invoked but never defined (see the help page).
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^ ^a ^b ^c ^d Cite error: The named reference zorec2012 was invoked but never defined (see the help page).
^ ^a ^b Cite error: The named reference CADARS was invoked but never defined (see the help page).
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^ Cite error: The named reference Eggleton2008 was invoked but never defined (see the help page).
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^ ^a ^b Cite error: The named reference Wraight2012 was invoked but never defined (see the help page).
^ Cite error: The named reference Zverko1984 was invoked but never defined (see the help page).

[GaiaDR2-1] ^ ^a ^b ^c ^d ^e ^f Cite error: The named reference GaiaDR2 was invoked but never defined (see the help page).

[Anderson2012-2] Cite error: The named reference Anderson2012 was invoked but never defined (see the help page).

[AAVSO-3] Cite error: The named reference AAVSO was invoked but never defined (see the help page).

[Cowley1969-4] Cite error: The named reference Cowley1969 was invoked but never defined (see the help page).

[deBruijne2012-5] Cite error: The named reference deBruijne2012 was invoked but never defined (see the help page).

[zorec2012-6] Cite error: The named reference zorec2012 was invoked but never defined (see the help page).

[CADARS-7] Cite error: The named reference CADARS was invoked but never defined (see the help page).

[gebran2016-8] Cite error: The named reference gebran2016 was invoked but never defined (see the help page).

[SIMBAD-9] Cite error: The named reference SIMBAD was invoked but never defined (see the help page).

[Eggleton2008-10] Cite error: The named reference Eggleton2008 was invoked but never defined (see the help page).

[Wagman1987-11] Cite error: The named reference Wagman1987 was invoked but never defined (see the help page).

[Wraight2012-12] Cite error: The named reference Wraight2012 was invoked but never defined (see the help page).

[Zverko1984-13] Cite error: The named reference Zverko1984 was invoked but never defined (see the help page).

Observation data Epoch J2000 Equinox J2000
Constellation	Aries
Right ascension	02^h 48^m 45.90719^s^[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 (R_v)	+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 (M_V)	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
16 Trianguli, VZ Arietis, BD+24°396, FK5 5868, HD 17471, HIP 13121, HR 830, SAO 75588^[9]
Database references
SIMBAD	data

VZ Arietis information

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