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Astronomy
Constellations - Hercules - 73 Her

 
Identification Data
Common Name
ConstellationHercules
Star Name73 Her
Skymap Number17240016
Henry Draper (HD) Number157728
Harvard Revised (HR) Number6480
SAO Number85062
Durchmusterung (DM) NumberBD+23 3100
Washington Double Stars (WDS) Number

Positional Data
Position and Proper Motion (PPM) Number105866
Right Ascension (RA) J200017h 24m 6.587s
Declination (Dec) J2000+22° 57' 37.027"
Position Uncertainty0.0086s
Proper Motion in RA (J2000)/cos(Dec)-0.00315
Proper Motion in Dec (J2000)-0.036866
Radial Velocity-019.7km s-1
Trigonometric Parallax+0.02337s
Trigonometric Parallax Uncertainty0.00075s
GCI Unit Vector in X (J2000)-0.143605
GCI Unit Vector in Y (J2000)-0.909508
GCI Unit Vector in Z (J2000)0.390093
Galactic Longitude45.53°
Galactic Latitude
28.86°
Observational Data
Observed Visual Magnitude (V)5.71
Derived Visual Magnitude
Derived Visual Magnitude or Observed Visual Magnitude Uncertainty0.002
Observed B Magnitude5.93
Observed B-V Colour+0.220
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 Magnitude5.7
Observed Photographic Magnitude
Morgan Keenan (MK) Spectral TypeF0IV
One-Dimensional Spectral ClassA3
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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