GU Piscium

GU Piscium
	; A visual band light curve for GU Piscium, plotted from ASAS-SN data
Observation data; Epoch J2000.0 Equinox J2000.0
Constellation	Pisces
Right ascension	01h 12m 35.0519s
Declination	17° 03′ 55.5712″
Apparent magnitude (V)	12.96 - 13.24
Characteristics
Spectral type	M3
Astrometry
Radial velocity (Rv)	−1.5±0.5 km/s
Proper motion (μ)	RA: 96.642±0.127 mas/yr ; Dec.: −100.704±0.107 mas/yr
Parallax (π)	21.0019±0.0721 mas
Distance	155.3 ± 0.5 ly ; (47.6 ± 0.2 pc)
Details
Radius	0.54±0.04 R☉
Surface gravity (log g)	4.75±0.07 cgs
Temperature	3250±32 K
Metallicity	−0.25±0.19
Rotational velocity (v sin i)	23.7±2.2 km/s
Other designations
	1SWASP J011235.03+170355.7, 1RXS J011235.6+170401, GU Psc, 2MASS J01123504+1703557
Database references
SIMBAD	data

GU Piscium is a star in the constellation Pisces.^[5] An RS Canum Venaticorum variable, it ranges from magnitude 12.96 to 13.24 over 1.04 days.^[6] It is 48 Parsecs (155 light-years) distant from Earth.^[7] This star is also believed to be a member of the AB Doradus moving group with a membership probability of 96.9%.^[8]

Quick facts Observation data Epoch J2000.0 Equinox J2000.0, Constellation ...

Observation data Epoch J2000.0 Equinox J2000.0
A visual band light curve for GU Piscium, plotted from ASAS-SN data
Constellation	Pisces
Right ascension	01^h 12^m 35.0519^s^[1]
Declination	17° 03′ 55.5712″^[1]
Apparent magnitude (V)	12.96 - 13.24
Characteristics
Spectral type	M3^[2]
Astrometry

Radial velocity (R_v)	−1.5±0.5^[3] km/s
Proper motion (μ)	RA: 96.642±0.127^[1] mas/yr Dec.: −100.704±0.107^[1] mas/yr
Parallax (π)	21.0019±0.0721 mas^[1]
Distance	155.3 ± 0.5 ly (47.6 ± 0.2 pc)

Details

Radius	0.54±0.04^[4] `R`_☉
Surface gravity (log g)	4.75±0.07^[4] cgs
Temperature	3250±32^[4] K
Metallicity	−0.25±0.19^[4]
Rotational velocity (v sin i)	23.7±2.2^[3] km/s

Other designations
1SWASP J011235.03+170355.7, 1RXS J011235.6+170401, GU Psc, 2MASS J01123504+1703557^[5]
Database references
SIMBAD	data

Planetary system