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Astronomy
Constellations - Hercules - 101 Her

 
Identification Data
Common Name
ConstellationHercules
Star Name101 Her
Skymap Number18080192
Henry Draper (HD) Number166230
Harvard Revised (HR) Number6794
SAO Number85770
Durchmusterung (DM) NumberBD+20 3675
Washington Double Stars (WDS) Number

Positional Data
Position and Proper Motion (PPM) Number106831
Right Ascension (RA) J200018h 8m 52.863s
Declination (Dec) J2000+20° 2' 42.838"
Position Uncertainty0.0075s
Proper Motion in RA (J2000)/cos(Dec)+0.00060
Proper Motion in Dec (J2000)-0.021166
Radial Velocity-016.3km s-1
Trigonometric Parallax+0.01016s
Trigonometric Parallax Uncertainty0.00074s
GCI Unit Vector in X (J2000)0.036394
GCI Unit Vector in Y (J2000)-0.938717
GCI Unit Vector in Z (J2000)0.342762
Galactic Longitude46.69°
Galactic Latitude
18.10°
Observational Data
Observed Visual Magnitude (V)5.11
Derived Visual Magnitude
Derived Visual Magnitude or Observed Visual Magnitude Uncertainty0.002
Observed B Magnitude5.28
Observed B-V Colour+0.166
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 Magnitude5.3
Morgan Keenan (MK) Spectral TypeA8III
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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