Astronomy
Constellations - Canis Major - 12 CMa

 
Identification Data
Common Name
ConstellationCanis Major
Star Name12 CMa
Skymap Number6470004
Henry Draper (HD) Number49333
Harvard Revised (HR) Number2509
SAO Number172318
Durchmusterung (DM) NumberSD-20 1576
Washington Double Stars (WDS) Number

Positional Data
Position and Proper Motion (PPM) Number250992
Right Ascension (RA) J20006h 47m 1.483s
Declination (Dec) J2000-21° 0' 55.446"
Position Uncertainty0.0076s
Proper Motion in RA (J2000)/cos(Dec)-0.00108
Proper Motion in Dec (J2000)+0.006266
Radial Velocity+019.0km s-1
Trigonometric Parallax+0.00488s
Trigonometric Parallax Uncertainty0.00072s
GCI Unit Vector in X (J2000)-0.190195
GCI Unit Vector in Y (J2000)0.913903
GCI Unit Vector in Z (J2000)-0.358619
Galactic Longitude231.36°
Galactic Latitude
-10.34°
Observational Data
Observed Visual Magnitude (V)6.07
Derived Visual Magnitude
Derived Visual Magnitude or Observed Visual Magnitude Uncertainty0.004
Observed B Magnitude5.91
Observed B-V Colour-0.160
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 Magnitude6.5
Observed Photographic Magnitude
Morgan Keenan (MK) Spectral TypeB7IIIn
One-Dimensional Spectral ClassB8
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 13:15:34 GMT+01:00 2001