Astronomy
Constellations - Ophiuchus - 8phi Oph

 
Identification Data
Common Name
ConstellationOphiuchus
Star Name8phi Oph
Skymap Number16310024
Henry Draper (HD) Number148786
Harvard Revised (HR) Number6147
SAO Number159963
Durchmusterung (DM) NumberSD-16 4298
Washington Double Stars (WDS) Number
16311-1637
Positional Data
Position and Proper Motion (PPM) Number231795
Right Ascension (RA) J200016h 31m 8.367s
Declination (Dec) J2000-16° 36' 45.837"
Position Uncertainty0.0082s
Proper Motion in RA (J2000)/cos(Dec)-0.00310
Proper Motion in Dec (J2000)-0.038066
Radial Velocity-034.4km s-1
Trigonometric Parallax+0.01553s
Trigonometric Parallax Uncertainty0.00077s
GCI Unit Vector in X (J2000)-0.362304
GCI Unit Vector in Y (J2000)-0.887128
GCI Unit Vector in Z (J2000)-0.285901
Galactic Longitude0.13°
Galactic Latitude
21.08°
Observational Data
Observed Visual Magnitude (V)4.29
Derived Visual Magnitude
Derived Visual Magnitude or Observed Visual Magnitude Uncertainty0.002
Observed B Magnitude5.22
Observed B-V Colour+0.929
Observed B Magnitude or (B-V) Magnitude Uncertainty0.003
Observed U Magnitude
Observed U-B Colour
Observed U Magnitude or (U-B) Magnitude Uncertainty
Observed Photovisual Magnitude4.0
Observed Photographic Magnitude5.4
Morgan Keenan (MK) Spectral TypeG8+IIIa
One-Dimensional Spectral ClassK0
Position Angle37
Year of Observation1916. 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