Astronomy
Constellations - Ophiuchus - 51 Oph

 
Identification Data
Common Name
ConstellationOphiuchus
Star Name51 Oph
Skymap Number17310082
Henry Draper (HD) Number158643
Harvard Revised (HR) Number6519
SAO Number185470
Durchmusterung (DM) NumberCD-2313412
Washington Double Stars (WDS) Number

Positional Data
Position and Proper Motion (PPM) Number266959
Right Ascension (RA) J200017h 31m 24.954s
Declination (Dec) J2000-23° 57' 45.516"
Position Uncertainty0.0085s
Proper Motion in RA (J2000)/cos(Dec)+0.00036
Proper Motion in Dec (J2000)-0.025966
Radial Velocity-012.0km s-1
Trigonometric Parallax+0.00765s
Trigonometric Parallax Uncertainty0.00087s
GCI Unit Vector in X (J2000)-0.113677
GCI Unit Vector in Y (J2000)-0.906712
GCI Unit Vector in Z (J2000)-0.406141
Galactic Longitude2.53°
Galactic Latitude
5.34°
Observational Data
Observed Visual Magnitude (V)4.80
Derived Visual Magnitude
Derived Visual Magnitude or Observed Visual Magnitude Uncertainty0.003
Observed B Magnitude4.81
Observed B-V Colour+0.013
Observed B Magnitude or (B-V) Magnitude Uncertainty0.004
Observed U Magnitude
Observed U-B Colour
Observed U Magnitude or (U-B) Magnitude Uncertainty
Observed Photovisual Magnitude4.8
Observed Photographic Magnitude4.9
Morgan Keenan (MK) Spectral TypeB9.5Ve
One-Dimensional Spectral ClassA0
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