Astronomy
Constellations - Hercules - 69 Her

 
Identification Data
Common Name
ConstellationHercules
Star Name69 Her
Skymap Number17170142
Henry Draper (HD) Number156729
Harvard Revised (HR) Number6436
SAO Number65921
Durchmusterung (DM) NumberBD+37 2864
Washington Double Stars (WDS) Number

Positional Data
Position and Proper Motion (PPM) Number80095
Right Ascension (RA) J200017h 17m 40.254s
Declination (Dec) J2000+37° 17' 29.394"
Position Uncertainty0.0064s
Proper Motion in RA (J2000)/cos(Dec)-0.00358
Proper Motion in Dec (J2000)+0.063867
Radial Velocity-009.9km s-1
Trigonometric Parallax+0.01834s
Trigonometric Parallax Uncertainty0.00055s
GCI Unit Vector in X (J2000)-0.146103
GCI Unit Vector in Y (J2000)-0.782033
GCI Unit Vector in Z (J2000)0.605870
Galactic Longitude61.35°
Galactic Latitude
33.91°
Observational Data
Observed Visual Magnitude (V)4.63
Derived Visual Magnitude
Derived Visual Magnitude or Observed Visual Magnitude Uncertainty0.002
Observed B Magnitude4.67
Observed B-V Colour+0.038
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 Magnitude4.8
Observed Photographic Magnitude4.9
Morgan Keenan (MK) Spectral TypeA2V
One-Dimensional Spectral ClassA2
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