Astronomy
Constellations - Libra - 17 Lib

 
Identification Data
Common Name
ConstellationLibra
Star Name17 Lib
Skymap Number14580036
Henry Draper (HD) Number132230
Harvard Revised (HR) Number5578
SAO Number158935
Durchmusterung (DM) NumberSD-10 3994
Washington Double Stars (WDS) Number

Positional Data
Position and Proper Motion (PPM) Number229560
Right Ascension (RA) J200014h 58m 13.411s
Declination (Dec) J2000-11° 9' 17.136"
Position Uncertainty0.0112s
Proper Motion in RA (J2000)/cos(Dec)-0.00061
Proper Motion in Dec (J2000)-0.008166
Radial Velocity-017.0km s-1
Trigonometric Parallax+0.00867s
Trigonometric Parallax Uncertainty0.00085s
GCI Unit Vector in X (J2000)-0.699105
GCI Unit Vector in Y (J2000)-0.688350
GCI Unit Vector in Z (J2000)-0.193460
Galactic Longitude345.94°
Galactic Latitude
40.90°
Observational Data
Observed Visual Magnitude (V)6.61
Derived Visual Magnitude
Derived Visual Magnitude or Observed Visual Magnitude Uncertainty0.006
Observed B Magnitude6.62
Observed B-V Colour+0.008
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 Magnitude7.0
Observed Photographic Magnitude6.4
Morgan Keenan (MK) Spectral TypeA1V
One-Dimensional Spectral ClassA0
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