Ross 271

light-years

Catalog numbers:
     Gliese (Gl) 851, Giclas (G) 126-61, Luyten Half-Second (LHS) 6, Hipparcos Input Catalog (HIC) 109555, Vyssotsky McCormick (McC) 74, Ross 271, Catalogue Astrographique (AC) +17°536-125, Luyten FT (LFT) 1691
Arity: singular
Right Ascension and Declination: 22h11m30.106s, +18°25'34.66" (epoch 2000.0)
Distance from Sol: 37.3 light-years (11.4 parsecs)
Standard error in distance: 1.8304%
Source for distance: Hipparcos
Celestial (X,Y,Z) coordinates in ly: 31.5, -16.1, 11.8
Galactic (X,Y,Z) coordinates in ly: 6.27, 31.6, -18.9
Proper motion: 0.383 arcsec/yr (58.9° from north)
Radial Velocity: -51.4 km/sec
Source for proper motion and radial velocity: Gliese
Galactic (U,V,W) velocity components in km/s: -29.1, -41.2, 23.0

What do all these fields mean?


Spectral class: M2e
Luminosity Class: V
Apparent visual magnitude: +10.25
Absolute visual magnitude: +9.96
Visual luminosity: 0.0090 x Sol
Color indices: B-V= +1.50, U-B= +1.15, R-I= +0.96
Comfort Zone (visual): 0.095 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.