Ross 42

light-years

Catalog numbers:
     Gliese (Gl) 206, Ross 42
Arity: singular
Right Ascension and Declination: 5h29m30s, +9°47'17" (epoch 1950.0)
Distance from Sol: 46.0 light-years (14.1 parsecs)
Standard error in distance: 3.6685%
Source for distance: Gliese
Celestial (X,Y,Z) coordinates in ly: 6.02, 44.9, 7.82
Galactic (X,Y,Z) coordinates in ly: -43.4, -11.5, -10.1
Proper motion: 0.293 arcsec/yr (233.0° from north)
Radial Velocity: 21.7 km/sec
Source for proper motion and radial velocity: Gliese
Galactic (U,V,W) velocity components in km/s: -15.8, -6.24, -23.8

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: M4e
Luminosity Class: V
Apparent visual magnitude: +11.52
Absolute visual magnitude: +10.77
Visual luminosity: 0.0043 x Sol
Color indices: B-V= +1.63, U-B= +1.07, R-I= +1.20
Comfort Zone (visual): 0.065 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.