Gliese & Jahreiss 2138

light-years

Catalog numbers:
     Gliese & Jahreiss (GJ) 2138, Giclas (G) 155-29, Luyten Half-Second (LHS) 3398, Hipparcos Input Catalog (HIC) 91430
Arity: singular
Right Ascension and Declination: 18h38m44.782s, -14°29'25.3" (epoch 2000.0)
Distance from Sol: 41.5 light-years (12.7 parsecs)
Standard error in distance: 3.5262%
Source for distance: Hipparcos
Celestial (X,Y,Z) coordinates in ly: 6.77, -39.6, -10.4
Galactic (X,Y,Z) coordinates in ly: 39.2, 13.5, -3.19
Proper motion: 0.544 arcsec/yr (166.9° from north)
Source for proper motion: Gliese

What do all these fields mean?


Spectral class: M1
Luminosity Class: V
Apparent visual magnitude: +11.28
Absolute visual magnitude: +10.75
Visual luminosity: 0.0043 x Sol
Color indices: B-V= +1.56, U-B= +1.23, R-I= +0.98
Comfort Zone (visual): 0.066 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.