Ross 773

light-years

Catalog numbers:
     Giclas (G) 145-31, Ross 773
Arity: binary
Right Ascension and Declination: 21h15m5s, +20°41'0" (epoch 1950.0)
Distance from Sol: 67 light-years (20 parsecs)
Standard error in distance: 15.5172%
Source for distance: Gliese
Celestial (X,Y,Z) coordinates in ly: 47, -41, 24
Galactic (X,Y,Z) coordinates in ly: 21, 59, -22
Proper motion: 0.42 arcsec/yr (47.0° 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: +10.68
Combined visual luminosity: 0.005 x Sol
Observed Separation: 82 A.U.s
As seen from A:
     B would appear as magnitude -9.56
As seen from B:
     A would appear as magnitude -11.09


Component A:
Catalog numbers:
     Luyten Two-Tenth (LTT) 16245
Spectral class: M3
Luminosity Class: V-VI
Apparent visual magnitude: +12.47
Absolute visual magnitude: +10.92
Visual luminosity: 0.004 x Sol
Comfort Zone (visual): 0.06 A.U.s


Component B:
Catalog numbers:
     Luyten Two-Tenth (LTT) 16246
Spectral class: M4
Luminosity Class: V-VI
Apparent visual magnitude: +14.00
Absolute visual magnitude: +12.45
Visual luminosity: 0.0009 x Sol
Comfort Zone (visual): 0.03 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.