15 pegasi

light-years
Proper names: 15 pegasi
Catalog numbers:
     Henry Draper (HD) 207978, Bonner Durchmusterung (BD) +28°4215, Hipparcos Input Catalog (HIC) 107975, Smithsonian Astrophysical Observatory (SAO) 90065, Hoffleit Bright Star (HR) 8354
Age: 5600 million years
Source for age: B. Edvardsson et al., "Chemical Evolution of the Galactic Disc", A&AP 275
Heavy element abundance: 27% of Sol
Standard error in heavy element abundance: 6%
Source for heavy element abundance: Strobel [Fe/H] Determinations
Arity: singular
Right Ascension and Declination: 21h52m29.928s, +28°47'36.65" (epoch 2000.0)
Distance from Sol: 90.2 light-years (27.7 parsecs)
Standard error in distance: 1.873%
Source for distance: Hipparcos
Celestial (X,Y,Z) coordinates in ly: 67.1, -41.8, 43.5
Galactic (X,Y,Z) coordinates in ly: 10.9, 84.2, -30.4
Proper motion: 0.079 arcsec/yr (223.0° from north)
Radial Velocity: 19 km/sec
Source for proper motion and radial velocity: Gliese
Galactic (U,V,W) velocity components in km/s: 12.5, 16.1, -7.41

What do all these fields mean?


Spectral class: F5
Luminosity Class: V-VI
Apparent visual magnitude: +5.53
Absolute visual magnitude: +3.32
Visual luminosity: 4.09 x Sol
Color indices: B-V= +0.42, U-B= -0.13
Diameter: 1.11 x Sol
Source for diameter: Apparent Diameters and Absolute Radii of Stars (Fracassini+ 1988)
Comfort Zone (visual): 2.02 A.U.s
Angular size of star in sky in CZ: 0.292427 degrees

light-years
but not more than light-years away
Data for this star system were most recently updated on 12-May-2001.