Astronomy
Constellations - Hercules - 75rho Her

 
Identification Data
Common Name
ConstellationHercules
Star Name75rho Her
Skymap Number17230117
Henry Draper (HD) Number157779
Harvard Revised (HR) Number6485
SAO Number66001
Durchmusterung (DM) NumberBD+37 2878
Washington Double Stars (WDS) Number
17237+3709
Positional Data
Position and Proper Motion (PPM) Number400231
Right Ascension (RA) J200017h 23m 40.944s
Declination (Dec) J2000+37° 8' 45.407"
Position Uncertainty0.0079s
Proper Motion in RA (J2000)/cos(Dec)-0.00323
Proper Motion in Dec (J2000)+0.009267
Radial Velocity-021.0km s-1
Trigonometric Parallax+0.00812s
Trigonometric Parallax Uncertainty0.00061s
GCI Unit Vector in X (J2000)-0.125785
GCI Unit Vector in Y (J2000)-0.787113
GCI Unit Vector in Z (J2000)0.603847
Galactic Longitude61.44°
Galactic Latitude
32.71°
Observational Data
Observed Visual Magnitude (V)4.51
Derived Visual Magnitude
Derived Visual Magnitude or Observed Visual Magnitude Uncertainty0.005
Observed B Magnitude4.49
Observed B-V Colour-0.024
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 Magnitude4.5
Observed Photographic Magnitude4.5
Morgan Keenan (MK) Spectral TypeB9.5III
One-Dimensional Spectral ClassA0
Position Angle2
Year of Observation1991. 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