Luyten Two-Tenth 13408

light-years

Catalog numbers:
     Gliese & Jahreiss (GJ) 1154, Giclas (G) 13-22, Luyten Half-Second (LHS) 2531, Luyten Two-Tenth (LTT) 13408
Arity: binary
Right Ascension and Declination: 12h11m46s, +0°54'12" (epoch 1950.0)
Distance from Sol: 27.6 light-years (8.46 parsecs)
Standard error in distance: 3.1941%
Source for distance: Gliese
Celestial (X,Y,Z) coordinates in ly: -27.6, -1.42, 0.44
Galactic (X,Y,Z) coordinates in ly: 2.88, -12.6, 24.4
Proper motion: 0.985 arcsec/yr (253.0° from north)
Source for proper motion: Gliese

What do all these fields mean?

Data for A and B's orbit around one other:
Combined spectrum: M
Combined absolute visual magnitude: +13.78
Combined visual luminosity: 0.00027 x Sol
Observed Separation: 42.3 A.U.s
As seen from A:
     B would appear as magnitude -8.15
As seen from B:
     A would appear as magnitude -9.35


Component A:
Apparent visual magnitude: +13.73
Absolute visual magnitude: +14.09
Visual luminosity: 0.00020 x Sol
Comfort Zone (visual): 0.014 A.U.s


Component B:
Catalog numbers:
     Luyten Half-Second (LHS) 2531
Right Ascension and Declination: 12h11m46s, +0°54'12" (epoch 1950.0)
Distance from Sol: 27.6 light-years (8.46 parsecs)
Standard error in distance: 3.1941%
Source for distance: Gliese
Celestial (X,Y,Z) coordinates in ly: -27.6, -1.42, 0.44
Galactic (X,Y,Z) coordinates in ly: 2.88, -12.6, 24.4
Proper motion: 0.985 arcsec/yr (253.0° from north)
Source for proper motion: Gliese
Apparent visual magnitude: +14.93
Absolute visual magnitude: +15.29
Visual luminosity: 0.000066 x Sol
Comfort Zone (visual): 0.0082 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.