Astronomy
Constellations - Libra - 47 Lib

 
Identification Data
Common Name
ConstellationLibra
Star Name47 Lib
Skymap Number15550004
Henry Draper (HD) Number142378
Harvard Revised (HR) Number5915
SAO Number159572
Durchmusterung (DM) NumberSD-18 4195
Washington Double Stars (WDS) Number
15550-1923
Positional Data
Position and Proper Motion (PPM) Number230941
Right Ascension (RA) J200015h 55m 0.363s
Declination (Dec) J2000-19° 22' 58.532"
Position Uncertainty0.0119s
Proper Motion in RA (J2000)/cos(Dec)-0.00075
Proper Motion in Dec (J2000)-0.018467
Radial Velocity-006.6km s-1
Trigonometric Parallax+0.00523s
Trigonometric Parallax Uncertainty0.00098s
GCI Unit Vector in X (J2000)-0.489349
GCI Unit Vector in Y (J2000)-0.806470
GCI Unit Vector in Z (J2000)-0.331880
Galactic Longitude351.65°
Galactic Latitude
25.66°
Observational Data
Observed Visual Magnitude (V)5.96
Derived Visual Magnitude
Derived Visual Magnitude or Observed Visual Magnitude Uncertainty0.004
Observed B Magnitude5.93
Observed B-V Colour-0.029
Observed B Magnitude or (B-V) Magnitude Uncertainty0.005
Observed U Magnitude
Observed U-B Colour
Observed U Magnitude or (U-B) Magnitude Uncertainty
Observed Photovisual Magnitude5.9
Observed Photographic Magnitude
Morgan Keenan (MK) Spectral TypeB5V
One-Dimensional Spectral ClassB5
Position Angle120
Year of Observation1994. 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