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Astronomy
Constellations - Hercules - 98 Her

 
Identification Data
Common Name
ConstellationHercules
Star Name98 Her
Skymap Number18060010
Henry Draper (HD) Number165625
Harvard Revised (HR) Number6765
SAO Number85725
Durchmusterung (DM) NumberBD+22 3273
Washington Double Stars (WDS) Number

Positional Data
Position and Proper Motion (PPM) Number106771
Right Ascension (RA) J200018h 6m 1.900s
Declination (Dec) J2000+22° 13' 7.965"
Position Uncertainty0.0059s
Proper Motion in RA (J2000)/cos(Dec)-0.00096
Proper Motion in Dec (J2000)-0.005366
Radial Velocity-019.9km s-1
Trigonometric Parallax+0.00530s
Trigonometric Parallax Uncertainty0.00065s
GCI Unit Vector in X (J2000)0.024361
GCI Unit Vector in Y (J2000)-0.925425
GCI Unit Vector in Z (J2000)0.378146
Galactic Longitude48.54°
Galactic Latitude
19.55°
Observational Data
Observed Visual Magnitude (V)4.99
Derived Visual Magnitude
Derived Visual Magnitude or Observed Visual Magnitude Uncertainty0.003
Observed B Magnitude6.63
Observed B-V Colour+1.637
Observed B Magnitude or (B-V) Magnitude Uncertainty0.005
Observed U Magnitude
Observed U-B Colour
Observed U Magnitude or (U-B) Magnitude Uncertainty
Observed Photovisual Magnitude5.3
Observed Photographic Magnitude6.7
Morgan Keenan (MK) Spectral TypeM3-SIII
One-Dimensional Spectral ClassM0
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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