Ross 948

light-years

Catalog numbers:
     Ross 948, Luyten Two-Tenth (LTT) 4730
Arity: binary
Right Ascension and Declination: 12h26m19s, -10°23'18" (epoch 1950.0)
Distance from Sol: 39 light-years (12 parsecs)
Standard error in distance: 16.1616%
Source for distance: Gliese
Celestial (X,Y,Z) coordinates in ly: -38, -4.4, -7.1
Galactic (X,Y,Z) coordinates in ly: 9.9, -22, 31
Proper motion: 0.281 arcsec/yr (273.0° from north)
Source for proper motion: Gliese

What do all these fields mean?

Data for A and B's orbit around one other:
Combined absolute visual magnitude: +9.82
Combined visual luminosity: 0.01 x Sol
Observed Separation: 48 A.U.s
As seen from A:
     B would appear as magnitude -12.56
As seen from B:
     A would appear as magnitude -12.60


Component A:
Spectral class: M2
Luminosity Class: V
Apparent visual magnitude: +10.96
Absolute visual magnitude: +10.56
Visual luminosity: 0.005 x Sol
Color indices: B-V= +1.51, R-I= +0.99
Comfort Zone (visual): 0.07 A.U.s


Component B:
Catalog numbers:
     Luyten Palomar (LP) 735-11
Right Ascension and Declination: 12h26m18s, -10°23'18" (epoch 1950.0)
Celestial (X,Y,Z) coordinates in ly: -38, -4.4, -7.1
Galactic (X,Y,Z) coordinates in ly: 9.9, -22, 31
Spectral class: M
Luminosity Class: V
Apparent visual magnitude: +11.00
Absolute visual magnitude: +10.60
Visual luminosity: 0.005 x Sol
Comfort Zone (visual): 0.07 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.