Zeta(1) Reticuli

light-years
Proper names: Zeta(1) Reticuli, Zeta Reticuli
Catalog numbers:
     Gliese (Gl) 136, Henry Draper (HD) 20766, Cape Photographic Durchmusterung (CPD) -63217 , Luyten Half-Second (LHS) 171 , Hipparcos Input Catalog (HIC) 15330, Smithsonian Astrophysical Observatory (SAO) 248770, Hoffleit Bright Star (HR) 1006
Heavy element abundance: 71% of Sol
Standard error in heavy element abundance: 21%
Source for heavy element abundance: Strobel [Fe/H] Determinations
Arity: singular
Points of interest:
     This star and Zeta(2) Reticuli may actually form a binary system.  If so, the two stars are at least 5500 A.U. apart in space, which would give them a very very long orbital period.

Right Ascension and Declination: 3h17m46.12s, -62°34'30.1" (epoch 2000.0)
Distance from Sol: 39.53 light-years (12.12 parsecs)
Standard error in distance: 0.6502%
Source for distance: Hipparcos
Celestial (X,Y,Z) coordinates in ly: 11.84, 13.83, -35.09
Galactic (X,Y,Z) coordinates in ly: 4.097, -26.52, -29.02
Proper motion: 1.495 arcsec/yr (63.2° from north)
Radial Velocity: 12.2 km/sec
Source for proper motion and radial velocity: Gliese
Galactic (U,V,W) velocity components in km/s: -71.24, -46.81, 16.08

What do all these fields mean?


Spectral class: G2
Luminosity Class: V
Apparent visual magnitude: +5.53
Absolute visual magnitude: +5.11
Visual luminosity: 0.786 x Sol
Color indices: B-V= +0.64
Mass: 0.9 x Sol
Diameter: 0.912 x Sol
Source for diameter: Apparent Diameters and Absolute Radii of Stars (Fracassini+ 1988)
Comfort Zone (visual): 0.887 A.U.s
Orbital period in CZ: 321.369 days
Tidal index in CZ: 1.29173
Angular size of star in sky in CZ: 0.548307 degrees

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