Astronomy
Constellations - Ursa Major - 79zet UMa (Mizar)

 
Identification Data
Common NameMizar
ConstellationUrsa Major
Star Name79zet UMa
Skymap Number13230119
Henry Draper (HD) Number116656
Harvard Revised (HR) Number5054
SAO Number28737
Durchmusterung (DM) NumberBD+55 1598
Washington Double Stars (WDS) Number
13239+5456
Positional Data
Position and Proper Motion (PPM) Number34007
Right Ascension (RA) J200013h 23m 55.542s
Declination (Dec) J2000+54° 55' 31.302"
Position Uncertainty0.0060s
Proper Motion in RA (J2000)/cos(Dec)+0.01406
Proper Motion in Dec (J2000)-0.022067
Radial Velocity-005.6km s-1
Trigonometric Parallax+0.04173s
Trigonometric Parallax Uncertainty0.00061s
GCI Unit Vector in X (J2000)-0.536542
GCI Unit Vector in Y (J2000)-0.205760
GCI Unit Vector in Z (J2000)0.818404
Galactic Longitude113.11°
Galactic Latitude
61.58°
Observational Data
Observed Visual Magnitude (V)2.22
Derived Visual Magnitude
Derived Visual Magnitude or Observed Visual Magnitude Uncertainty0.003
Observed B Magnitude2.27
Observed B-V Colour+0.053
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 Magnitude2.4
Observed Photographic Magnitude
Morgan Keenan (MK) Spectral TypeA1VpSrSi
One-Dimensional Spectral ClassA2
Position Angle153
Year of Observation1993. 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