Ross 45

light-years

Catalog numbers:
     Giclas (G) 97-52, Ross 45
Arity: binary
Right Ascension and Declination: 5h31m30s, +10°17'30" (epoch 1950.0)
Distance from Sol: 64 light-years (20 parsecs)
Standard error in distance: 12.069%
Source for distance: Gliese
Celestial (X,Y,Z) coordinates in ly: 7.8, 62, 11
Galactic (X,Y,Z) coordinates in ly: -61, -16, -13
Proper motion: 0.38 arcsec/yr (197.0° 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: +10.57
Combined visual luminosity: 0.005 x Sol
Observed Separation: 118 A.U.s
As seen from A:
     B would appear as magnitude -9.06
As seen from B:
     A would appear as magnitude -10.36


Component A:
Catalog numbers:
     Luyten Two-Tenth (LTT) 11678
Spectral class: M3
Luminosity Class: V
Apparent visual magnitude: +12.32
Absolute visual magnitude: +10.86
Visual luminosity: 0.004 x Sol
Color indices: R-I= +1.06
Comfort Zone (visual): 0.06 A.U.s


Component B:
Catalog numbers:
     Luyten Two-Tenth (LTT) 11677
Right Ascension and Declination: 5h31m30s, +10°17'23" (epoch 1950.0)
Celestial (X,Y,Z) coordinates in ly: 7.8, 62, 11
Galactic (X,Y,Z) coordinates in ly: -61, -16, -13
Spectral class: M3.5
Luminosity Class: V-VI
Apparent visual magnitude: +13.62
Absolute visual magnitude: +12.16
Visual luminosity: 0.001 x Sol
Color indices: R-I= +1.21
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.