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Astronomy
Constellations - Hercules - 87 Her

 
Identification Data
Common Name
ConstellationHercules
Star Name87 Her
Skymap Number17480163
Henry Draper (HD) Number162211
Harvard Revised (HR) Number6644
SAO Number85437
Durchmusterung (DM) NumberBD+25 3353
Washington Double Stars (WDS) Number

Positional Data
Position and Proper Motion (PPM) Number106382
Right Ascension (RA) J200017h 48m 49.146s
Declination (Dec) J2000+25° 37' 22.327"
Position Uncertainty0.0063s
Proper Motion in RA (J2000)/cos(Dec)-0.00027
Proper Motion in Dec (J2000)-0.038566
Radial Velocity-025.5km s-1
Trigonometric Parallax+0.01594s
Trigonometric Parallax Uncertainty0.00061s
GCI Unit Vector in X (J2000)-0.043971
GCI Unit Vector in Y (J2000)-0.900587
GCI Unit Vector in Z (J2000)0.432446
Galactic Longitude50.45°
Galactic Latitude
24.44°
Observational Data
Observed Visual Magnitude (V)5.10
Derived Visual Magnitude
Derived Visual Magnitude or Observed Visual Magnitude Uncertainty0.002
Observed B Magnitude6.24
Observed B-V Colour+1.145
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 Magnitude5.3
Observed Photographic Magnitude
Morgan Keenan (MK) Spectral TypeK0IIIb
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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