Astronomy
Constellations - Ursa Major - 17 UMa

 
Identification Data
Common Name
ConstellationUrsa Major
Star Name17 UMa
Skymap Number9150141
Henry Draper (HD) Number79354
Harvard Revised (HR) Number3660
SAO Number27185
Durchmusterung (DM) NumberBD+57 1211
Washington Double Stars (WDS) Number

Positional Data
Position and Proper Motion (PPM) Number32072
Right Ascension (RA) J20009h 15m 49.782s
Declination (Dec) J2000+56° 44' 29.064"
Position Uncertainty0.0065s
Proper Motion in RA (J2000)/cos(Dec)-0.00302
Proper Motion in Dec (J2000)-0.029266
Radial Velocity-030.4km s-1
Trigonometric Parallax+0.00479s
Trigonometric Parallax Uncertainty0.00068s
GCI Unit Vector in X (J2000)-0.413629
GCI Unit Vector in Y (J2000)0.360102
GCI Unit Vector in Z (J2000)0.836204
Galactic Longitude159.52°
Galactic Latitude
41.98°
Observational Data
Observed Visual Magnitude (V)5.28
Derived Visual Magnitude
Derived Visual Magnitude or Observed Visual Magnitude Uncertainty0.003
Observed B Magnitude6.85
Observed B-V Colour+1.572
Observed B Magnitude or (B-V) Magnitude Uncertainty0.006
Observed U Magnitude
Observed U-B Colour
Observed U Magnitude or (U-B) Magnitude Uncertainty
Observed Photovisual Magnitude5.5
Observed Photographic Magnitude6.7
Morgan Keenan (MK) Spectral TypeK4III
One-Dimensional Spectral ClassK5
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 13:15:51 GMT+01:00 2001