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Astronomy
Constellations - Libra - 23 Lib

 
Identification Data
Common Name
ConstellationLibra
Star Name23 Lib
Skymap Number15130075
Henry Draper (HD) Number134987
Harvard Revised (HR) Number5657
SAO Number183275
Durchmusterung (DM) NumberCD-2411928
Washington Double Stars (WDS) Number

Positional Data
Position and Proper Motion (PPM) Number263962
Right Ascension (RA) J200015h 13m 28.667s
Declination (Dec) J2000-25° 18' 33.649"
Position Uncertainty0.0118s
Proper Motion in RA (J2000)/cos(Dec)-0.02943
Proper Motion in Dec (J2000)-0.075166
Radial Velocity+003.4km s-1
Trigonometric Parallax+0.03898s
Trigonometric Parallax Uncertainty0.00098s
GCI Unit Vector in X (J2000)-0.600558
GCI Unit Vector in Y (J2000)-0.675699
GCI Unit Vector in Z (J2000)-0.427505
Galactic Longitude339.20°
Galactic Latitude
27.38°
Observational Data
Observed Visual Magnitude (V)6.47
Derived Visual Magnitude
Derived Visual Magnitude or Observed Visual Magnitude Uncertainty0.006
Observed B Magnitude7.16
Observed B-V Colour+0.694
Observed B Magnitude or (B-V) Magnitude Uncertainty0.007
Observed U Magnitude
Observed U-B Colour
Observed U Magnitude or (U-B) Magnitude Uncertainty
Observed Photovisual Magnitude6.7
Observed Photographic Magnitude
Morgan Keenan (MK) Spectral TypeG4V
One-Dimensional Spectral ClassG5
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))

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