Bruce Proper Motion 85872

light-years

Catalog numbers:
     Gliese & Jahreiss (GJ) 2043, Hipparcos Input Catalog (HIC) 25716, Bruce Proper Motion (BPM) 85872
Arity: binary
Right Ascension and Declination: 5h29m27.067s, +15°34'37.4" (epoch 2000.0)
Distance from Sol: 56.7 light-years (17.4 parsecs)
Standard error in distance: 3.6205%
Source for distance: Hipparcos
Celestial (X,Y,Z) coordinates in ly: 7.26, 54.2, 15.2
Galactic (X,Y,Z) coordinates in ly: -55.1, -9.47, -9.49
Proper motion: 0.199 arcsec/yr (207.0° 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: +9.40
Combined visual luminosity: 0.015 x Sol
Observed Separation: 278 A.U.s
As seen from A:
     B would appear as magnitude -5.87
As seen from B:
     A would appear as magnitude -9.92


Component A:
Catalog numbers:
     Luyten Palomar (LP) 412-213
Spectral class: M2
Luminosity Class: V
Apparent visual magnitude: +10.63
Absolute visual magnitude: +9.43
Visual luminosity: 0.015 x Sol
Color indices: B-V= +1.47, U-B= +1.29, R-I= +0.77
Comfort Zone (visual): 0.12 A.U.s


Component B:
Catalog numbers:
     Luyten Palomar (LP) 417-212
Right Ascension and Declination: 5h26m34s, +15°32'23" (epoch 1950.0)
Celestial (X,Y,Z) coordinates in ly: 7.94, 54.1, 15.2
Galactic (X,Y,Z) coordinates in ly: -55.1, -9.13, -10.1
Spectral class: M
Luminosity Class: V
Apparent visual magnitude: +14.68
Absolute visual magnitude: +13.48
Visual luminosity: 0.00035 x Sol
Color indices: R-I= +1.28
Comfort Zone (visual): 0.019 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.