Bonner Durchmusterung +29°1441

light-years

Catalog numbers:
     Gliese (Gl) 262, Henry Draper (HD) 52711, Bonner Durchmusterung (BD) +29°1441, Luyten Half-Second (LHS) 1893, Hipparcos Input Catalog (HIC) 34017, Smithsonian Astrophysical Observatory (SAO) 79009, Hoffleit Bright Star (HR) 2643
Age: 6400 million years
Source for age: Don C. Barry, "Chromospheric Age Dependence of…", APJ 334
Heavy element abundance: 71% of Sol
Source for heavy element abundance: Strobel [Fe/H] Determinations
Arity: singular
Right Ascension and Declination: 7h3m30.43s, +29°20'13.7" (epoch 2000.0)
Distance from Sol: 62.3 light-years (19.1 parsecs)
Standard error in distance: 1.5787%
Source for distance: Hipparcos
Celestial (X,Y,Z) coordinates in ly: -14.9, 52.2, 30.5
Galactic (X,Y,Z) coordinates in ly: -59.3, -8.12, 17.1
Proper motion: 0.841 arcsec/yr (169.1° from north)
Radial Velocity: 25.4 km/sec
Source for proper motion and radial velocity: Gliese
Galactic (U,V,W) velocity components in km/s: -18.4, -77.7, -8.21

What do all these fields mean?


Spectral class: G4
Luminosity Class: V
Apparent visual magnitude: +5.92
Absolute visual magnitude: +4.52
Visual luminosity: 1.36 x Sol
Color indices: B-V= +0.60, U-B= +0.04, R-I= +0.21
Diameter: 1.64 x Sol
Source for diameter: Apparent Diameters and Absolute Radii of Stars (Fracassini+ 1988)
Comfort Zone (visual): 1.17 A.U.s
Angular size of star in sky in CZ: 0.750948 degrees

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