YZ Ceti

Proper names: YZ Ceti
Catalog numbers:
     Gliese (Gl) 54.1, Giclas (G) 268-135, Luyten Half-Second (LHS) 138 , Luyten Two-Tenth (LTT) 670, Luyten (L) 725-32
Arity: singular
Right Ascension and Declination: 1h9m59s, -17°16'23" (epoch 1950.0)
Distance from Sol: 12.2 light-years (3.74 parsecs)
Standard error in distance: 1.1095%
Source for distance: Gliese
Celestial (X,Y,Z) coordinates in ly: 11.1, 3.50, -3.62
Galactic (X,Y,Z) coordinates in ly: -2.05, 1.20, -12.0
Proper motion: 1.345 arcsec/yr (62.3° from north)
Radial Velocity: 28 km/sec
Source for proper motion and radial velocity: Gliese
Galactic (U,V,W) velocity components in km/s: -28.0, -0.46, -23.8

What do all these fields mean?

Spectral class: M4.5
Luminosity Class: V
Apparent visual magnitude: +12.05
Absolute visual magnitude: +14.19
Visual luminosity: 0.00018 x Sol
Variable type: UV Ceti flare star (eruptive variable)
Color indices: B-V= +1.84
Mass: 0.085 x Sol
Comfort Zone (visual): 0.014 A.U.s
Orbital period in CZ: 1.98152 days
Tidal index in CZ: 33976.7

but not more than light-years away
Data for this star system were most recently updated on 4-April-2001.