Astronomy
Constellations - Hercules - 58eps Her

 
Identification Data
Common Name
ConstellationHercules
Star Name58eps Her
Skymap Number17000051
Henry Draper (HD) Number153808
Harvard Revised (HR) Number6324
SAO Number65716
Durchmusterung (DM) NumberBD+31 2947
Washington Double Stars (WDS) Number

Positional Data
Position and Proper Motion (PPM) Number79844
Right Ascension (RA) J200017h 0m 17.373s
Declination (Dec) J2000+30° 55' 35.057"
Position Uncertainty0.0072s
Proper Motion in RA (J2000)/cos(Dec)-0.00371
Proper Motion in Dec (J2000)+0.026966
Radial Velocity-025.1km s-1
Trigonometric Parallax+0.02004s
Trigonometric Parallax Uncertainty0.00065s
GCI Unit Vector in X (J2000)-0.220975
GCI Unit Vector in Y (J2000)-0.828878
GCI Unit Vector in Z (J2000)0.513937
Galactic Longitude52.85°
Galactic Latitude
36.17°
Observational Data
Observed Visual Magnitude (V)3.91
Derived Visual Magnitude
Derived Visual Magnitude or Observed Visual Magnitude Uncertainty0.002
Observed B Magnitude3.90
Observed B-V Colour-0.008
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 TypeA0V
One-Dimensional Spectral ClassA0
Position Angle139
Year of Observation1987. 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