Luyten 1512-34

light-years

Catalog numbers:
     Gliese (Gl) 905.2, Hipparcos Input Catalog (HIC) 117059, Luyten (L) 1512-34
Arity: binary
Right Ascension and Declination: 23h43m50.65s, +32°32'46.4" (epoch 2000.0)
Distance from Sol: 58.7 light-years (18.0 parsecs)
Standard error in distance: 2.9668%
Source for distance: Gliese
Celestial (X,Y,Z) coordinates in ly: 49.3, -3.48, 31.6
Galactic (X,Y,Z) coordinates in ly: -15.5, 49.4, -27.6
Proper motion: 0.233 arcsec/yr (256.0° from north)
Radial Velocity: -24.3 km/sec
Source for proper motion and radial velocity: Gliese
Galactic (U,V,W) velocity components in km/s: 25.3, -14.1, 12.2

What do all these fields mean?


Component A:
Catalog numbers:
     Catalogue Astrographique (AC) +32°86422, Giclas (G) 130-6
Spectral class: M5
Luminosity Class: V
Apparent visual magnitude: +11.67
Absolute visual magnitude: +10.40
Visual luminosity: 0.0060 x Sol
Color indices: B-V= +1.56, U-B= +1.18, R-I= +1.09
Comfort Zone (visual): 0.078 A.U.s


Component B:
Catalog numbers:
     Catalogue Astrographique (AC) +32°86401, Giclas (G) 130-5, Eggen/Greenstein white dwarf (EG) 162, Luyten Two-Tenth (LTT) 16991, Luyten Palomar (LP) 347-415
Right Ascension and Declination: 23h41m21s, +32°16'12" (epoch 1950.0)
Celestial (X,Y,Z) coordinates in ly: 49.4, -4.03, 31.3
Galactic (X,Y,Z) coordinates in ly: -14.9, 49.5, -27.7
Proper motion: 0.233 arcsec/yr (256.0° from north)
Radial Velocity: 17 km/sec
Source for proper motion and radial velocity: Gliese
Galactic (U,V,W) velocity components in km/s: 14.5, 20.6, -7.10
Spectral class: DA4
Luminosity Class: wd
Apparent visual magnitude: +12.90
Absolute visual magnitude: +11.63
Visual luminosity: 0.0019 x Sol
Color indices: B-V= +0.15, U-B= -0.61
Comfort Zone (visual): 0.044 A.U.s

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