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Astronomy
Constellations - Cassiopeia - 4 Cas

 
Identification Data
Common Name
ConstellationCassiopeia
Star Name4 Cas
Skymap Number23240131
Henry Draper (HD) Number220652
Harvard Revised (HR) Number8904
SAO Number20614
Durchmusterung (DM) NumberBD+61 2444
Washington Double Stars (WDS) Number
23248+6217
Positional Data
Position and Proper Motion (PPM) Number24436
Right Ascension (RA) J200023h 24m 50.262s
Declination (Dec) J2000+62° 16' 58.104"
Position Uncertainty0.0068s
Proper Motion in RA (J2000)/cos(Dec)+0.00175
Proper Motion in Dec (J2000)-0.013366
Radial Velocity-037.3km s-1
Trigonometric Parallax+0.00423s
Trigonometric Parallax Uncertainty0.00055s
GCI Unit Vector in X (J2000)0.459644
GCI Unit Vector in Y (J2000)-0.071079
GCI Unit Vector in Z (J2000)0.885254
Galactic Longitude113.05°
Galactic Latitude
1.08°
Observational Data
Observed Visual Magnitude (V)4.97
Derived Visual Magnitude
Derived Visual Magnitude or Observed Visual Magnitude Uncertainty0.003
Observed B Magnitude6.62
Observed B-V Colour+1.648
Observed B Magnitude or (B-V) Magnitude Uncertainty0.006
Observed U Magnitude
Observed U-B Colour
Observed U Magnitude or (U-B) Magnitude Uncertainty
Observed Photovisual Magnitude5.2
Observed Photographic Magnitude
Morgan Keenan (MK) Spectral TypeM1III
One-Dimensional Spectral ClassK5
Position Angle226
Year of Observation1917. 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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