Astronomy
Constellations - Hercules - 61 Her

 
Identification Data
Common Name
ConstellationHercules
Star Name61 Her
Skymap Number17030091
Henry Draper (HD) Number154356
Harvard Revised (HR) Number6346
SAO Number65761
Durchmusterung (DM) NumberBD+35 2911
Washington Double Stars (WDS) Number

Positional Data
Position and Proper Motion (PPM) Number79896
Right Ascension (RA) J200017h 3m 30.215s
Declination (Dec) J2000+35° 24' 50.575"
Position Uncertainty0.0071s
Proper Motion in RA (J2000)/cos(Dec)+0.00237
Proper Motion in Dec (J2000)-0.043266
Radial Velocity-011.9km s-1
Trigonometric Parallax+0.00470s
Trigonometric Parallax Uncertainty0.00061s
GCI Unit Vector in X (J2000)-0.198875
GCI Unit Vector in Y (J2000)-0.790348
GCI Unit Vector in Z (J2000)0.579481
Galactic Longitude58.48°
Galactic Latitude
36.40°
Observational Data
Observed Visual Magnitude (V)6.27
Derived Visual Magnitude
Derived Visual Magnitude or Observed Visual Magnitude Uncertainty0.006
Observed B Magnitude7.71
Observed B-V Colour+1.439
Observed B Magnitude or (B-V) Magnitude Uncertainty0.009
Observed U Magnitude
Observed U-B Colour
Observed U Magnitude or (U-B) Magnitude Uncertainty
Observed Photovisual Magnitude6.8
Observed Photographic Magnitude7.4
Morgan Keenan (MK) Spectral TypeM4IIIab
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))

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