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Astronomy
Constellations - Libra - 44eta Lib

 
Identification Data
Common Name
ConstellationLibra
Star Name44eta Lib
Skymap Number15440023
Henry Draper (HD) Number140417
Harvard Revised (HR) Number5848
SAO Number159466
Durchmusterung (DM) NumberSD-15 4171
Washington Double Stars (WDS) Number

Positional Data
Position and Proper Motion (PPM) Number230667
Right Ascension (RA) J200015h 44m 4.399s
Declination (Dec) J2000-15° 40' 22.202"
Position Uncertainty0.0098s
Proper Motion in RA (J2000)/cos(Dec)-0.00239
Proper Motion in Dec (J2000)-0.063566
Radial Velocity-031.2km s-1
Trigonometric Parallax+0.02221s
Trigonometric Parallax Uncertainty0.00086s
GCI Unit Vector in X (J2000)-0.538147
GCI Unit Vector in Y (J2000)-0.798386
GCI Unit Vector in Z (J2000)-0.270144
Galactic Longitude352.53°
Galactic Latitude
30.13°
Observational Data
Observed Visual Magnitude (V)5.42
Derived Visual Magnitude
Derived Visual Magnitude or Observed Visual Magnitude Uncertainty0.004
Observed B Magnitude5.66
Observed B-V Colour+0.235
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 Magnitude5.4
Observed Photographic Magnitude5.7
Morgan Keenan (MK) Spectral TypeF0IV
One-Dimensional Spectral ClassA5
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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