Cordoba Durchmusterung -4913515


Catalog numbers:
     Gliese (Gl) 832, Henry Draper (HD) 204961, Cape Photographic Durchmusterung (CPD) -4911439, Luyten Half-Second (LHS) 3685, Hipparcos Input Catalog (HIC) 106440, UGPMF 529, Southern Reference System (SRS) 2566, Cordoba Durchmusterung (CD) -4913515, Luyten (L) 354-89, Smethells (Sm) 83
Arity: singular
Right Ascension and Declination: 21h33m33.922s, -49°0'32.98" (epoch 2000.0)
Distance from Sol: 16.10 light-years (4.938 parsecs)
Standard error in distance: 0.6524%
Source for distance: Hipparcos
Celestial (X,Y,Z) coordinates in ly: 8.480, -6.300, -12.16
Galactic (X,Y,Z) coordinates in ly: 10.81, -2.035, -11.76
Proper motion: 0.828 arcsec/yr (184.8° from north)
Radial Velocity: 4.1 km/sec
Source for proper motion and radial velocity: Gliese
Galactic (U,V,W) velocity components in km/s: 3.277, -19.52, 0.774

What do all these fields mean?

Spectral class: M1
Luminosity Class: V
Apparent visual magnitude: +8.66
Absolute visual magnitude: +10.20
Visual luminosity: 0.00727 x Sol
Color indices: B-V= +1.47, U-B= +1.05, R-I= +0.93
Mass: 0.37 x Sol
Diameter: 0.356 x Sol
Source for diameter: Apparent Diameters and Absolute Radii of Stars (Fracassini+ 1988)
Comfort Zone (visual): 0.0853 A.U.s
Orbital period in CZ: 14.9546 days
Tidal index in CZ: 596.526
Angular size of star in sky in CZ: 2.222544 degrees

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