Astronomy
Constellations - Ophiuchus - 66 Oph

 
Identification Data
Common Name
ConstellationOphiuchus
Star Name66 Oph
Skymap Number18000061
Henry Draper (HD) Number164284
Harvard Revised (HR) Number6712
SAO Number123005
Durchmusterung (DM) NumberBD+04 3570
Washington Double Stars (WDS) Number

Positional Data
Position and Proper Motion (PPM) Number164975
Right Ascension (RA) J200018h 0m 15.798s
Declination (Dec) J2000+4° 22' 7.015"
Position Uncertainty0.0091s
Proper Motion in RA (J2000)/cos(Dec)+0.00012
Proper Motion in Dec (J2000)-0.013066
Radial Velocity-012.8km s-1
Trigonometric Parallax+0.00482s
Trigonometric Parallax Uncertainty0.00078s
GCI Unit Vector in X (J2000)0.001146
GCI Unit Vector in Y (J2000)-0.997094
GCI Unit Vector in Z (J2000)0.076173
Galactic Longitude31.00°
Galactic Latitude
13.37°
Observational Data
Observed Visual Magnitude (V)4.79
Derived Visual Magnitude
Derived Visual Magnitude or Observed Visual Magnitude Uncertainty0.006
Observed B Magnitude4.69
Observed B-V Colour-0.104
Observed B Magnitude or (B-V) Magnitude Uncertainty0.006
Observed U Magnitude
Observed U-B Colour
Observed U Magnitude or (U-B) Magnitude Uncertainty
Observed Photovisual Magnitude4.8
Observed Photographic Magnitude4.6
Morgan Keenan (MK) Spectral TypeB2Ve
One-Dimensional Spectral ClassB3
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 13:15:46 GMT+01:00 2001