Ross 249

light-years

Catalog numbers:
     Gliese (Gl) 907, Giclas (G) 171-19, Luyten Half-Second (LHS) 4015, Hipparcos Input Catalog (HIC) 117383, Ross 249
Arity: singular
Right Ascension and Declination: 23h48m3.186s, +49°0'57.42" (epoch 2000.0)
Distance from Sol: 53.9 light-years (16.5 parsecs)
Standard error in distance: 5.0784%
Source for distance: Hipparcos
Celestial (X,Y,Z) coordinates in ly: 35.3, -1.84, 40.7
Galactic (X,Y,Z) coordinates in ly: -20.4, 48.5, -11.5
Proper motion: 0.652 arcsec/yr (83.5° from north)
Radial Velocity: 27 km/sec
Source for proper motion and radial velocity: Gliese
Galactic (U,V,W) velocity components in km/s: -56.3, 3.37, -12.1

What do all these fields mean?


Spectral class: M1.5
Luminosity Class: V
Apparent visual magnitude: +12.06
Absolute visual magnitude: +10.97
Visual luminosity: 0.0036 x Sol
Color indices: B-V= +1.66, U-B= +1.34
Comfort Zone (visual): 0.060 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.