Astronomy
Constellations - Ursa Major - 33lam UMa (Tania Borealis)

 
Identification Data
Common NameTania Borealis
ConstellationUrsa Major
Star Name33lam UMa
Skymap Number10170016
Henry Draper (HD) Number89021
Harvard Revised (HR) Number4033
SAO Number43268
Durchmusterung (DM) NumberBD+43 2005
Washington Double Stars (WDS) Number

Positional Data
Position and Proper Motion (PPM) Number51795
Right Ascension (RA) J200010h 17m 5.791s
Declination (Dec) J2000+42° 54' 51.714"
Position Uncertainty0.0115s
Proper Motion in RA (J2000)/cos(Dec)-0.01549
Proper Motion in Dec (J2000)-0.042666
Radial Velocity+018.1km s-1
Trigonometric Parallax+0.02427s
Trigonometric Parallax Uncertainty0.00079s
GCI Unit Vector in X (J2000)-0.659780
GCI Unit Vector in Y (J2000)0.317898
GCI Unit Vector in Z (J2000)0.680905
Galactic Longitude175.87°
Galactic Latitude
55.09°
Observational Data
Observed Visual Magnitude (V)3.44
Derived Visual Magnitude
Derived Visual Magnitude or Observed Visual Magnitude Uncertainty0.003
Observed B Magnitude3.49
Observed B-V Colour+0.045
Observed B Magnitude or (B-V) Magnitude Uncertainty0.004
Observed U Magnitude
Observed U-B Colour
Observed U Magnitude or (U-B) Magnitude Uncertainty
Observed Photovisual Magnitude3.5
Observed Photographic Magnitude
Morgan Keenan (MK) Spectral TypeA2IV
One-Dimensional Spectral ClassA2
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 13:15:52 GMT+01:00 2001