Luyten 601-78

Catalog numbers:
Luyten Half-Second (LHS) 1955, Luyten (L) 601-78, Luyten Two-Tenth (LTT) 2982, Luyten Palomar (LP) 898-1
Arity: binary
Right Ascension and Declination: 7h52m52s, -29°12'36" (epoch 1950.0)
Distance from Sol: 41 light-years (12 parsecs)
Standard error in distance: 13.9785%
Source for distance: Gliese
Celestial (X,Y,Z) coordinates in ly: -17, 31, -20
Galactic (X,Y,Z) coordinates in ly: -17, -37, -0.5
Proper motion: 0.548 arcsec/yr (148.3° 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: M4 V-VI
Combined absolute visual magnitude: +12.36
Combined visual luminosity: 0.0010 x Sol
Observed Separation: 10.0 A.U.s
As seen from A:
B would appear as magnitude -13.18
As seen from B:
A would appear as magnitude -13.68

Component A:
Apparent visual magnitude: +13.38
Absolute visual magnitude: +12.90
Visual luminosity: 0.0006 x Sol
Comfort Zone (visual): 0.02 A.U.s

Component B:
Apparent visual magnitude: +13.88
Absolute visual magnitude: +13.40
Visual luminosity: 0.0004 x Sol
Comfort Zone (visual): 0.02 A.U.s

Data for this star system were most recently updated on 4-April-2001.