Ross 52

light-years

Catalog numbers:
     Gliese (Gl) 568, Giclas (G) 166-53, Luyten Half-Second (LHS) 2997, Hipparcos Input Catalog (HIC) 72896, Ross 52
Arity: binary
Right Ascension and Declination: 14h53m51.4s, +23°33'21.9" (epoch 2000.0)
Distance from Sol: 33.3 light-years (10.2 parsecs)
Standard error in distance: 5.7696%
Source for distance: Hipparcos
Celestial (X,Y,Z) coordinates in ly: -22.2, -21.0, 13.3
Galactic (X,Y,Z) coordinates in ly: 13.4, 8.46, 29.3
Proper motion: 0.692 arcsec/yr (278.7° from north)
Radial Velocity: -35.7 km/sec
Source for proper motion and radial velocity: Gliese
Galactic (U,V,W) velocity components in km/s: -37.4, -27.6, -15.6

What do all these fields mean?

Data for A and B's orbit around one other:
Combined spectrum: M3.5
Combined absolute visual magnitude: +11.62
Combined visual luminosity: 0.0020 x Sol
Period: 34.1 years
Semimajor Axis: 7.05 A.U.s
Source for orbit data: Heintz AJ 99, 420 (1990)
As seen from A:
     B would appear as magnitude -14.68
As seen from B:
     A would appear as magnitude -15.19


Component A:
Apparent visual magnitude: +12.19
Absolute visual magnitude: +12.14
Visual luminosity: 0.0012 x Sol
Diameter: 0.38 x Sol
Source for diameter: Apparent Diameters and Absolute Radii of Stars (Fracassini+ 1988)
Comfort Zone (visual): 0.035 A.U.s
Angular size of star in sky in CZ: 5.822974 degrees


Component B:
Apparent visual magnitude: +12.70
Absolute visual magnitude: +12.65
Visual luminosity: 0.00076 x Sol
Diameter: 0.33 x Sol
Source for diameter: Apparent Diameters and Absolute Radii of Stars (Fracassini+ 1988)
Comfort Zone (visual): 0.028 A.U.s
Angular size of star in sky in CZ: 6.395584 degrees

light-years
but not more than light-years away
Data for this star system were most recently updated on 4-April-2001.