Astronomy
Constellations - Ophiuchus - 61 Oph

 
Identification Data
Common Name
ConstellationOphiuchus
Star Name61 Oph
Skymap Number17440130
Henry Draper (HD) Number161270
Harvard Revised (HR) Number6609
SAO Number122690
Durchmusterung (DM) NumberBD+02 3390
Washington Double Stars (WDS) Number
17446+0235
Positional Data
Position and Proper Motion (PPM) Number164510
Right Ascension (RA) J200017h 44m 34.092s
Declination (Dec) J2000+2° 34' 45.986"
Position Uncertainty0.0300s
Proper Motion in RA (J2000)/cos(Dec)+0.00048
Proper Motion in Dec (J2000)+0.013667
Radial Velocity-031.0km s-1
Trigonometric Parallax+0.00709s
Trigonometric Parallax Uncertainty0.00274s
GCI Unit Vector in X (J2000)-0.067215
GCI Unit Vector in Y (J2000)-0.996723
GCI Unit Vector in Z (J2000)0.045005
Galactic Longitude27.50°
Galactic Latitude
16.04°
Observational Data
Observed Visual Magnitude (V)6.16
Derived Visual Magnitude
Derived Visual Magnitude or Observed Visual Magnitude Uncertainty
Observed B Magnitude6.29
Observed B-V Colour+0.131
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 Magnitude6.3
Observed Photographic Magnitude5.6
Morgan Keenan (MK) Spectral TypeA1IV-V
One-Dimensional Spectral ClassA0
Position Angle93
Year of Observation1968. 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