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Astronomy
Constellations - Hercules - 54 Her

 
Identification Data
Common Name
ConstellationHercules
Star Name54 Her
Skymap Number16550065
Henry Draper (HD) Number152879
Harvard Revised (HR) Number6293
SAO Number102476
Durchmusterung (DM) NumberBD+18 3266
Washington Double Stars (WDS) Number
16554+1826
Positional Data
Position and Proper Motion (PPM) Number132820
Right Ascension (RA) J200016h 55m 22.167s
Declination (Dec) J2000+18° 25' 59.565"
Position Uncertainty0.0074s
Proper Motion in RA (J2000)/cos(Dec)-0.00807
Proper Motion in Dec (J2000)+0.011966
Radial Velocity+012.3km s-1
Trigonometric Parallax+0.00919s
Trigonometric Parallax Uncertainty0.00076s
GCI Unit Vector in X (J2000)-0.264003
GCI Unit Vector in Y (J2000)-0.911219
GCI Unit Vector in Z (J2000)0.316199
Galactic Longitude37.87°
Galactic Latitude
33.62°
Observational Data
Observed Visual Magnitude (V)5.35
Derived Visual Magnitude
Derived Visual Magnitude or Observed Visual Magnitude Uncertainty0.002
Observed B Magnitude6.76
Observed B-V Colour+1.413
Observed B Magnitude or (B-V) Magnitude Uncertainty0.004
Observed U Magnitude
Observed U-B Colour
Observed U Magnitude or (U-B) Magnitude Uncertainty
Observed Photovisual Magnitude5.6
Observed Photographic Magnitude6.7
Morgan Keenan (MK) Spectral TypeK4III
One-Dimensional Spectral ClassK2
Position Angle180
Year of Observation1967. 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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