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Astronomy
Constellations - Cassiopeia - 55 Cas

 
Identification Data
Common Name
ConstellationCassiopeia
Star Name55 Cas
Skymap Number2140074
Henry Draper (HD) Number13474
Harvard Revised (HR) Number640
SAO Number12180
Durchmusterung (DM) NumberBD+65 239
Washington Double Stars (WDS) Number
02145+6631
Positional Data
Position and Proper Motion (PPM) Number13532
Right Ascension (RA) J20002h 14m 29.093s
Declination (Dec) J2000+66° 31' 27.943"
Position Uncertainty0.0060s
Proper Motion in RA (J2000)/cos(Dec)-0.00116
Proper Motion in Dec (J2000)-0.005666
Radial Velocity-040.km s-1
Trigonometric Parallax+0.00442s
Trigonometric Parallax Uncertainty0.00061s
GCI Unit Vector in X (J2000)0.331719
GCI Unit Vector in Y (J2000)0.220571
GCI Unit Vector in Z (J2000)0.917230
Galactic Longitude131.09°
Galactic Latitude
4.98°
Observational Data
Observed Visual Magnitude (V)6.06
Derived Visual Magnitude
Derived Visual Magnitude or Observed Visual Magnitude Uncertainty0.003
Observed B Magnitude6.70
Observed B-V Colour+0.638
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 Magnitude6.2
Observed Photographic Magnitude
Morgan Keenan (MK) Spectral TypeG0II-III+B9V
One-Dimensional Spectral ClassA2
Position Angle180
Year of Observation1991. 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))

 
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Page compiled: Sun Sep 02 13:15:36 GMT+01:00 2001
 
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