Astronomy
Constellations - Hercules - 102 Her

 
Identification Data
Common Name
ConstellationHercules
Star Name102 Her
Skymap Number18080161
Henry Draper (HD) Number166182
Harvard Revised (HR) Number6787
SAO Number85769
Durchmusterung (DM) NumberBD+20 3674
Washington Double Stars (WDS) Number
18088+2049
Positional Data
Position and Proper Motion (PPM) Number106829
Right Ascension (RA) J200018h 8m 45.490s
Declination (Dec) J2000+20° 48' 52.405"
Position Uncertainty0.0060s
Proper Motion in RA (J2000)/cos(Dec)-0.00019
Proper Motion in Dec (J2000)-0.006266
Radial Velocity-014.7km s-1
Trigonometric Parallax+0.00214s
Trigonometric Parallax Uncertainty0.00063s
GCI Unit Vector in X (J2000)0.035712
GCI Unit Vector in Y (J2000)-0.934053
GCI Unit Vector in Z (J2000)0.355344
Galactic Longitude47.42°
Galactic Latitude
18.42°
Observational Data
Observed Visual Magnitude (V)4.37
Derived Visual Magnitude
Derived Visual Magnitude or Observed Visual Magnitude Uncertainty0.002
Observed B Magnitude4.20
Observed B-V Colour-0.170
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 Magnitude4.3
Observed Photographic Magnitude
Morgan Keenan (MK) Spectral TypeB2IV
One-Dimensional Spectral ClassB3
Position Angle136
Year of Observation1934. 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