Astronomy
Constellations - Hercules - 109 Her

 
Identification Data
Common Name
ConstellationHercules
Star Name109 Her
Skymap Number18230130
Henry Draper (HD) Number169414
Harvard Revised (HR) Number6895
SAO Number86003
Durchmusterung (DM) NumberBD+21 3411
Washington Double Stars (WDS) Number
18237+2146
Positional Data
Position and Proper Motion (PPM) Number107183
Right Ascension (RA) J200018h 23m 41.889s
Declination (Dec) J2000+21° 46' 11.107"
Position Uncertainty0.0055s
Proper Motion in RA (J2000)/cos(Dec)+0.01404
Proper Motion in Dec (J2000)-0.242966
Radial Velocity-057.3km s-1
Trigonometric Parallax+0.02540s
Trigonometric Parallax Uncertainty0.00065s
GCI Unit Vector in X (J2000)0.095857
GCI Unit Vector in Y (J2000)-0.923721
GCI Unit Vector in Z (J2000)0.370878
Galactic Longitude49.77°
Galactic Latitude
15.60°
Observational Data
Observed Visual Magnitude (V)3.85
Derived Visual Magnitude
Derived Visual Magnitude or Observed Visual Magnitude Uncertainty0.002
Observed B Magnitude5.02
Observed B-V Colour+1.174
Observed B Magnitude or (B-V) Magnitude Uncertainty0.002
Observed U Magnitude
Observed U-B Colour
Observed U Magnitude or (U-B) Magnitude Uncertainty
Observed Photovisual Magnitude3.9
Observed Photographic Magnitude
Morgan Keenan (MK) Spectral TypeK2IIIab
One-Dimensional Spectral ClassK0
Position Angle321
Year of Observation1923. 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))

 
Page compiled: Sun Sep 02 13:15:42 GMT+01:00 2001