Astronomy
Constellations - Ophiuchus - 41 Oph

 
Identification Data
Common Name
ConstellationOphiuchus
Star Name41 Oph
Skymap Number17160098
Henry Draper (HD) Number156266
Harvard Revised (HR) Number6415
SAO Number141586
Durchmusterung (DM) NumberBD-00 3255
Washington Double Stars (WDS) Number
17166-0027
Positional Data
Position and Proper Motion (PPM) Number180026
Right Ascension (RA) J200017h 16m 36.686s
Declination (Dec) J2000-0° 26' 43.070"
Position Uncertainty0.0098s
Proper Motion in RA (J2000)/cos(Dec)-0.00221
Proper Motion in Dec (J2000)-0.063967
Radial Velocity-002.3km s-1
Trigonometric Parallax+0.01497s
Trigonometric Parallax Uncertainty0.00072s
GCI Unit Vector in X (J2000)-0.188184
GCI Unit Vector in Y (J2000)-0.982103
GCI Unit Vector in Z (J2000)-0.007772
Galactic Longitude21.20°
Galactic Latitude
20.75°
Observational Data
Observed Visual Magnitude (V)4.74
Derived Visual Magnitude
Derived Visual Magnitude or Observed Visual Magnitude Uncertainty0.003
Observed B Magnitude5.90
Observed B-V Colour+1.162
Observed B Magnitude or (B-V) Magnitude Uncertainty0.005
Observed U Magnitude
Observed U-B Colour
Observed U Magnitude or (U-B) Magnitude Uncertainty
Observed Photovisual Magnitude4.8
Observed Photographic Magnitude5.8
Morgan Keenan (MK) Spectral TypeK2III
One-Dimensional Spectral ClassK0
Position Angle2
Year of Observation1989. 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