Astronomy
Constellations - Ophiuchus - 30 Oph

 
Identification Data
Common Name
ConstellationOphiuchus
Star Name30 Oph
Skymap Number17010009
Henry Draper (HD) Number153687
Harvard Revised (HR) Number6318
SAO Number141483
Durchmusterung (DM) NumberSD-04 4215
Washington Double Stars (WDS) Number
17011-0413
Positional Data
Position and Proper Motion (PPM) Number200261
Right Ascension (RA) J200017h 1m 3.602s
Declination (Dec) J2000-4° 13' 21.517"
Position Uncertainty0.0087s
Proper Motion in RA (J2000)/cos(Dec)-0.00269
Proper Motion in Dec (J2000)-0.077966
Radial Velocity-006.7km s-1
Trigonometric Parallax+0.00811s
Trigonometric Parallax Uncertainty0.00107s
GCI Unit Vector in X (J2000)-0.253658
GCI Unit Vector in Y (J2000)-0.964487
GCI Unit Vector in Z (J2000)-0.073632
Galactic Longitude15.58°
Galactic Latitude
22.18°
Observational Data
Observed Visual Magnitude (V)4.81
Derived Visual Magnitude
Derived Visual Magnitude or Observed Visual Magnitude Uncertainty0.003
Observed B Magnitude6.29
Observed B-V Colour+1.482
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 Magnitude5.0
Observed Photographic Magnitude6.0
Morgan Keenan (MK) Spectral TypeK4III
One-Dimensional Spectral ClassK0
Position Angle69
Year of Observation1923. 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