LE 7

light-years

Catalog numbers:
     LE 7, Giclas (G) 74-34, Luyten Palomar (LP) 298-7
Arity: binary
Right Ascension and Declination: 2h33m49s, +31°51'23" (epoch 1950.0)
Distance from Sol: 80 light-years (24 parsecs)
Standard error in distance: 14.5833%
Source for distance: Gliese
Celestial (X,Y,Z) coordinates in ly: 53, 42, 42
Galactic (X,Y,Z) coordinates in ly: -61, 38, -35
Proper motion: 0.33 arcsec/yr (260.0° from north)
Source for proper motion: Gliese

What do all these fields mean?

Data for A and B's orbit around one other:
Combined absolute visual magnitude: +11.07
Combined visual luminosity: 0.003 x Sol
Observed Separation: 73 A.U.s
As seen from A:
     B would appear as magnitude -10.29
As seen from B:
     A would appear as magnitude -10.56


Component A:
Catalog numbers:
     Luyten Two-Tenth (LTT) 10854
Spectral class: M3
Luminosity Class: V-VI
Apparent visual magnitude: +13.63
Absolute visual magnitude: +11.69
Visual luminosity: 0.002 x Sol
Comfort Zone (visual): 0.04 A.U.s


Component B:
Catalog numbers:
     Luyten Palomar (LP) 298-98, Luyten Two-Tenth (LTT) 10855
Spectral class: M3.5
Luminosity Class: V-VI
Apparent visual magnitude: +13.90
Absolute visual magnitude: +11.96
Visual luminosity: 0.001 x Sol
Comfort Zone (visual): 0.04 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.