Astronomy
Constellations - Hercules - 50 Her

 
Identification Data
Common Name
ConstellationHercules
Star Name50 Her
Skymap Number16500099
Henry Draper (HD) Number152173
Harvard Revised (HR) Number6258
SAO Number84641
Durchmusterung (DM) NumberBD+30 2884
Washington Double Stars (WDS) Number

Positional Data
Position and Proper Motion (PPM) Number105270
Right Ascension (RA) J200016h 50m 38.958s
Declination (Dec) J2000+29° 48' 23.536"
Position Uncertainty0.0062s
Proper Motion in RA (J2000)/cos(Dec)-0.00043
Proper Motion in Dec (J2000)-0.003066
Radial Velocity-010.2km s-1
Trigonometric Parallax+0.00353s
Trigonometric Parallax Uncertainty0.00067s
GCI Unit Vector in X (J2000)-0.258579
GCI Unit Vector in Y (J2000)-0.828284
GCI Unit Vector in Z (J2000)0.497073
Galactic Longitude50.91°
Galactic Latitude
37.96°
Observational Data
Observed Visual Magnitude (V)5.72
Derived Visual Magnitude
Derived Visual Magnitude or Observed Visual Magnitude Uncertainty0.003
Observed B Magnitude7.32
Observed B-V Colour+1.598
Observed B Magnitude or (B-V) Magnitude Uncertainty0.006
Observed U Magnitude
Observed U-B Colour
Observed U Magnitude or (U-B) Magnitude Uncertainty
Observed Photovisual Magnitude5.9
Observed Photographic Magnitude7.0
Morgan Keenan (MK) Spectral TypeM1IIIa
One-Dimensional Spectral ClassK5
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))

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