Luyten 829-24

light-years

Catalog numbers:
     Luyten (L) 829-24, Luyten Two-Tenth (LTT) 4477
Arity: binary
Right Ascension and Declination: 11h58m9s, -13°32'30" (epoch 1950.0)
Distance from Sol: 56 light-years (17 parsecs)
Standard error in distance: 19.4444%
Source for distance: Gliese
Celestial (X,Y,Z) coordinates in ly: -55, 0.4, -13
Galactic (X,Y,Z) coordinates in ly: 9.7, -37, 41
Proper motion: 0.487 arcsec/yr (268.8° 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: +11.43
Combined visual luminosity: 0.002 x Sol
Observed Separation: 129 A.U.s
As seen from A:
     B would appear as magnitude -7.20
As seen from B:
     A would appear as magnitude -9.46


Component A:
Catalog numbers:
     Luyten Half-Second (LHS) 5205, Luyten Palomar (LP) 734-11
Spectral class: M3
Luminosity Class: V-VI
Apparent visual magnitude: +12.74
Absolute visual magnitude: +11.56
Visual luminosity: 0.002 x Sol
Color indices: B-V= +1.55, R-I= +1.17
Comfort Zone (visual): 0.05 A.U.s


Component B:
Catalog numbers:
     Luyten Half-Second (LHS) 5204, Luyten Palomar (LP) 734-10
Right Ascension and Declination: 11h58m8s, -13°32'30" (epoch 1950.0)
Celestial (X,Y,Z) coordinates in ly: -55, 0.4, -13
Galactic (X,Y,Z) coordinates in ly: 9.7, -37, 41
Spectral class: M
Luminosity Class: V-VI
Apparent visual magnitude: +15.00
Absolute visual magnitude: +13.82
Visual luminosity: 0.0003 x Sol
Comfort Zone (visual): 0.02 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.