Astronomy
Constellations - Libra - 37 Lib

 
Identification Data
Common Name
ConstellationLibra
Star Name37 Lib
Skymap Number15340028
Henry Draper (HD) Number138716
Harvard Revised (HR) Number5777
SAO Number140609
Durchmusterung (DM) NumberSD-09 4171
Washington Double Stars (WDS) Number

Positional Data
Position and Proper Motion (PPM) Number230420
Right Ascension (RA) J200015h 34m 10.700s
Declination (Dec) J2000-10° 3' 52.303"
Position Uncertainty0.0095s
Proper Motion in RA (J2000)/cos(Dec)+0.02069
Proper Motion in Dec (J2000)-0.234166
Radial Velocity+047.7km s-1
Trigonometric Parallax+0.03454s
Trigonometric Parallax Uncertainty0.00078s
GCI Unit Vector in X (J2000)-0.585053
GCI Unit Vector in Y (J2000)-0.791942
GCI Unit Vector in Z (J2000)-0.174757
Galactic Longitude355.24°
Galactic Latitude
35.79°
Observational Data
Observed Visual Magnitude (V)4.61
Derived Visual Magnitude
Derived Visual Magnitude or Observed Visual Magnitude Uncertainty0.003
Observed B Magnitude5.63
Observed B-V Colour+1.021
Observed B Magnitude or (B-V) Magnitude Uncertainty0.004
Observed U Magnitude
Observed U-B Colour
Observed U Magnitude or (U-B) Magnitude Uncertainty
Observed Photovisual Magnitude4.8
Observed Photographic Magnitude5.8
Morgan Keenan (MK) Spectral TypeK1III-IV
One-Dimensional Spectral ClassK0
Position Angle
Year of Observation AD

Data Source
SKY2000 - Master Star Catalog - Star Catalog Database, Version 2
    Sande C.B., Warren Jr. W.H., Tracewell D.A., Home A.T., Miller A.C.
    (Goddard Space Flight Center, Flight Dynamics Division (1998))

 
Page compiled: Sun Sep 02 13:15:44 GMT+01:00 2001