39 Serpentis

light-years
Proper names: 39 Serpentis
Catalog numbers:
     Henry Draper (HD) 142267, Bonner Durchmusterung (BD) +13°3024, Luyten Half-Second (LHS) 3131, Hipparcos Input Catalog (HIC) 77801, Smithsonian Astrophysical Observatory (SAO) 101792, FK5 Extension (FK5 Ext) 3254, Hoffleit Bright Star (HR) 5911, Luyten Two-Tenth (LTT) 14713, New Suspected Variable (NSV) 7313
Heavy element abundance: 52% of Sol
Source for heavy element abundance: Strobel [Fe/H] Determinations
Arity: singular
Right Ascension and Declination: 15h53m12.105s, +13°11'47.9" (epoch 2000.0)
Distance from Sol: 57.0 light-years (17.5 parsecs)
Standard error in distance: 1.5133%
Source for distance: Hipparcos
Celestial (X,Y,Z) coordinates in ly: -29.1, -47.2, 13.0
Galactic (X,Y,Z) coordinates in ly: 36.8, 16.6, 40.1
Proper motion: 0.584 arcsec/yr (195.3° from north)
Radial Velocity: 35.1 km/sec
Source for proper motion and radial velocity: Gliese
Galactic (U,V,W) velocity components in km/s: 47.8, -30.6, 18.6

What do all these fields mean?


NOTE: This star is actually a close-orbiting binary pair. The data below are for both sub-components of the pair combined.
Spectral class: G1
Luminosity Class: V
Apparent visual magnitude: +6.09
Absolute visual magnitude: +4.87
Visual luminosity: 0.98 x Sol
Color indices: B-V= +0.60, U-B= +0.00, R-I= +0.22
Diameter: 0.98 x Sol
Source for diameter: Apparent Diameters and Absolute Radii of Stars (Fracassini+ 1988)
Comfort Zone (visual): 0.99 A.U.s
Angular size of star in sky in CZ: 0.526171 degrees

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