Astronomy
Constellations - Cassiopeia - 12 Cas

 
Identification Data
Common Name
ConstellationCassiopeia
Star Name12 Cas
Skymap Number240112
Henry Draper (HD) Number2011
Harvard Revised (HR) Number93
SAO Number11172
Durchmusterung (DM) NumberBD+61 69
Washington Double Stars (WDS) Number

Positional Data
Position and Proper Motion (PPM) Number12190
Right Ascension (RA) J20000h 24m 47.505s
Declination (Dec) J2000+61° 49' 51.807"
Position Uncertainty0.0055s
Proper Motion in RA (J2000)/cos(Dec)+0.00193
Proper Motion in Dec (J2000)-0.002566
Radial Velocity-004.0km s-1
Trigonometric Parallax+0.00427s
Trigonometric Parallax Uncertainty0.00054s
GCI Unit Vector in X (J2000)0.469314
GCI Unit Vector in Y (J2000)0.050967
GCI Unit Vector in Z (J2000)0.881559
Galactic Longitude119.80°
Galactic Latitude
-0.88°
Observational Data
Observed Visual Magnitude (V)5.39
Derived Visual Magnitude
Derived Visual Magnitude or Observed Visual Magnitude Uncertainty0.002
Observed B Magnitude5.39
Observed B-V Colour+0.001
Observed B Magnitude or (B-V) Magnitude Uncertainty0.002
Observed U Magnitude
Observed U-B Colour
Observed U Magnitude or (U-B) Magnitude Uncertainty
Observed Photovisual Magnitude5.4
Observed Photographic Magnitude5.4
Morgan Keenan (MK) Spectral TypeB9III
One-Dimensional Spectral ClassB9
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 13:15:36 GMT+01:00 2001