TZ Arietis information

TZ Arietis
	TZ Arietis Location of TZ Arietis in the constellation Aries;
Observation data; Epoch J2000 Equinox J2000
Constellation	Aries
Right ascension	02h 00m 12.95632s
Declination	+13° 03′ 07.0006″
Apparent magnitude (V)	12.298
Characteristics
Spectral type	M4.5 V
U−B color index	+1.37
B−V color index	+1.80
R−I color index	1.39
Variable type	Flare star
Astrometry
Radial velocity (Rv)	−28.29±0.25 km/s
Proper motion (μ)	RA: 1096.458 mas/yr ; Dec.: -1771.526 mas/yr
Parallax (π)	223.7321 ± 0.0699 mas
Distance	14.578 ± 0.005 ly ; (4.470 ± 0.001 pc)
Absolute magnitude (MV)	14.03
Details
Mass	0.14 M☉
Radius	0.161 R☉
Luminosity	0.00135 L☉
Surface gravity (log g)	5.05 cgs
Temperature	3,158 K
Metallicity [Fe/H]	−0.14 dex
Rotational velocity (v sin i)	3.8 km/s
Age	4.8 Gyr
Other designations
	TZ Ari, GJ 83.1, GJ 9066, G 003-033, L 1159-16, LFT 171, LHS 11, PLX 412.02, 2MASS J02001278+1303112
Database references
SIMBAD	data

TZ Arietis (also known as Gliese 83.1, GJ 9066, or L 1159-16) is a red dwarf in the northern constellation of Aries. With a normal apparent visual magnitude of 12.3, it is too faint to be seen by the naked eye, although it lies relatively close to the Sun at a distance of 14.6 light-years (4.47 parsecs). It is a flare star, which means it can suddenly increase in brightness for short periods of time.

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Observation data Epoch J2000 Equinox J2000
TZ Arietis Location of TZ Arietis in the constellation Aries
Constellation	Aries
Right ascension	02^h 00^m 12.95632^s^[1]
Declination	+13° 03′ 07.0006″^[1]
Apparent magnitude (V)	12.298^[2]
Characteristics
Spectral type	M4.5 V^[3]
U−B color index	+1.37^[4]
B−V color index	+1.80^[4]
R−I color index	1.39^[3]
Variable type	Flare star
Astrometry

Radial velocity (R_v)	−28.29±0.25^[1] km/s
Proper motion (μ)	RA: 1096.458 mas/yr^[1] Dec.: -1771.526 mas/yr^[1]
Parallax (π)	223.7321 ± 0.0699 mas^[1]
Distance	14.578 ± 0.005 ly (4.470 ± 0.001 pc)
Absolute magnitude (M_V)	14.03^[5]

Details

Mass	0.14^[6] `M`_☉
Radius	0.161^[7] `R`_☉
Luminosity	0.00135^[8] `L`_☉
Surface gravity (log g)	5.05^[6] cgs
Temperature	3,158^[7] K
Metallicity [Fe/H]	−0.14^[7] dex
Rotational velocity (v sin i)	3.8^[8] km/s
Age	4.8^[6] Gyr

Other designations
TZ Ari, GJ 83.1, GJ 9066, G 003-033, L 1159-16, LFT 171, LHS 11, PLX 412.02, 2MASS J02001278+1303112^[9]
Database references
SIMBAD	data

TZ Arietis information

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TZ Arietis

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