Astronomy
Constellations - Hercules - 30 Her

 
Identification Data
Common Name
ConstellationHercules
Star Name30 Her
Skymap Number16280093
Henry Draper (HD) Number148783
Harvard Revised (HR) Number6146
SAO Number46108
Durchmusterung (DM) NumberBD+42 2714
Washington Double Stars (WDS) Number

Positional Data
Position and Proper Motion (PPM) Number55445
Right Ascension (RA) J200016h 28m 38.547s
Declination (Dec) J2000+41° 52' 54.038"
Position Uncertainty0.0073s
Proper Motion in RA (J2000)/cos(Dec)+0.00261
Proper Motion in Dec (J2000)-0.005566
Radial Velocity+003.4km s-1
Trigonometric Parallax+0.00903s
Trigonometric Parallax Uncertainty0.00061s
GCI Unit Vector in X (J2000)-0.288987
GCI Unit Vector in Y (J2000)-0.686152
GCI Unit Vector in Z (J2000)0.667594
Galactic Longitude66.16°
Galactic Latitude
43.72°
Observational Data
Observed Visual Magnitude (V)4.90
Derived Visual Magnitude
Derived Visual Magnitude or Observed Visual Magnitude Uncertainty0.022
Observed B Magnitude6.17
Observed B-V Colour+1.267
Observed B Magnitude or (B-V) Magnitude Uncertainty0.023
Observed U Magnitude
Observed U-B Colour
Observed U Magnitude or (U-B) Magnitude Uncertainty
Observed Photovisual Magnitude5.0
Observed Photographic Magnitude6.4
Morgan Keenan (MK) Spectral TypeM6-III
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 13:15:41 GMT+01:00 2001