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Astronomy
Constellations - Hercules - 51 Her

 
Identification Data
Common Name
ConstellationHercules
Star Name51 Her
Skymap Number16510138
Henry Draper (HD) Number152326
Harvard Revised (HR) Number6270
SAO Number84651
Durchmusterung (DM) NumberBD+24 3069
Washington Double Stars (WDS) Number

Positional Data
Position and Proper Motion (PPM) Number105282
Right Ascension (RA) J200016h 51m 45.262s
Declination (Dec) J2000+24° 39' 23.158"
Position Uncertainty0.0058s
Proper Motion in RA (J2000)/cos(Dec)+0.00076
Proper Motion in Dec (J2000)+0.005566
Radial Velocity-015.7km s-1
Trigonometric Parallax+0.00430s
Trigonometric Parallax Uncertainty0.00066s
GCI Unit Vector in X (J2000)-0.266646
GCI Unit Vector in Y (J2000)-0.868829
GCI Unit Vector in Z (J2000)0.417176
Galactic Longitude44.73°
Galactic Latitude
36.42°
Observational Data
Observed Visual Magnitude (V)5.03
Derived Visual Magnitude
Derived Visual Magnitude or Observed Visual Magnitude Uncertainty0.002
Observed B Magnitude6.28
Observed B-V Colour+1.245
Observed B Magnitude or (B-V) Magnitude Uncertainty0.003
Observed U Magnitude
Observed U-B Colour
Observed U Magnitude or (U-B) Magnitude Uncertainty
Observed Photovisual Magnitude5.2
Observed Photographic Magnitude
Morgan Keenan (MK) Spectral TypeK0.5IIIaCa0.5
One-Dimensional Spectral ClassK0
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 13:15:42 GMT+01:00 2001
 
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