Astronomy
Constellations - Libra - 7mu Lib

 
Identification Data
Common Name
ConstellationLibra
Star Name7mu Lib
Skymap Number14490055
Henry Draper (HD) Number130559
Harvard Revised (HR) Number5523
SAO Number158821
Durchmusterung (DM) NumberSD-13 3986
Washington Double Stars (WDS) Number
14493-1409
Positional Data
Position and Proper Motion (PPM) Number229330
Right Ascension (RA) J200014h 49m 19.051s
Declination (Dec) J2000-14° 8' 56.479"
Position Uncertainty0.0156s
Proper Motion in RA (J2000)/cos(Dec)-0.00453
Proper Motion in Dec (J2000)-0.014867
Radial Velocity-004.1km s-1
Trigonometric Parallax+0.01386s
Trigonometric Parallax Uncertainty0.00130s
GCI Unit Vector in X (J2000)-0.716858
GCI Unit Vector in Y (J2000)-0.652963
GCI Unit Vector in Z (J2000)-0.244445
Galactic Longitude341.31°
Galactic Latitude
39.78°
Observational Data
Observed Visual Magnitude (V)5.60
Derived Visual Magnitude
Derived Visual Magnitude or Observed Visual Magnitude Uncertainty0.018
Observed B Magnitude5.64
Observed B-V Colour+0.037
Observed B Magnitude or (B-V) Magnitude Uncertainty0.022
Observed U Magnitude
Observed U-B Colour
Observed U Magnitude or (U-B) Magnitude Uncertainty
Observed Photovisual Magnitude5.8
Observed Photographic Magnitude5.4
Morgan Keenan (MK) Spectral TypeA1pSrCrEu
One-Dimensional Spectral ClassA2
Position Angle1
Year of Observation1991. 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