Astronomy
Constellations - Ursa Major - 23 UMa

 
Identification Data
Common Name
ConstellationUrsa Major
Star Name23 UMa
Skymap Number9310093
Henry Draper (HD) Number81937
Harvard Revised (HR) Number3757
SAO Number14908
Durchmusterung (DM) NumberBD+63 845
Washington Double Stars (WDS) Number
09315+6304
Positional Data
Position and Proper Motion (PPM) Number17085
Right Ascension (RA) J20009h 31m 31.708s
Declination (Dec) J2000+63° 3' 42.699"
Position Uncertainty0.0058s
Proper Motion in RA (J2000)/cos(Dec)+0.01583
Proper Motion in Dec (J2000)+0.026966
Radial Velocity-010.4km s-1
Trigonometric Parallax+0.04320s
Trigonometric Parallax Uncertainty0.00064s
GCI Unit Vector in X (J2000)-0.361243
GCI Unit Vector in Y (J2000)0.273383
GCI Unit Vector in Z (J2000)0.891496
Galactic Longitude150.64°
Galactic Latitude
41.74°
Observational Data
Observed Visual Magnitude (V)3.65
Derived Visual Magnitude
Derived Visual Magnitude or Observed Visual Magnitude Uncertainty0.002
Observed B Magnitude4.00
Observed B-V Colour+0.346
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 Magnitude3.8
Observed Photographic Magnitude
Morgan Keenan (MK) Spectral TypeF0IV
One-Dimensional Spectral ClassF0
Position Angle269
Year of Observation1975. 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 13:15:52 GMT+01:00 2001