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Astronomy
Constellations - Cepheus - 12 Cep

 
Identification Data
Common Name
ConstellationCepheus
Star Name12 Cep
Skymap Number21470088
Henry Draper (HD) Number207528
Harvard Revised (HR) Number8339
SAO Number19642
Durchmusterung (DM) NumberBD+60 2294
Washington Double Stars (WDS) Number

Positional Data
Position and Proper Motion (PPM) Number23195
Right Ascension (RA) J200021h 47m 25.295s
Declination (Dec) J2000+60° 41' 33.681"
Position Uncertainty0.0055s
Proper Motion in RA (J2000)/cos(Dec)-0.00132
Proper Motion in Dec (J2000)-0.001866
Radial Velocity-019.9km s-1
Trigonometric Parallax+0.00698s
Trigonometric Parallax Uncertainty0.00047s
GCI Unit Vector in X (J2000)0.409850
GCI Unit Vector in Y (J2000)-0.267633
GCI Unit Vector in Z (J2000)0.872007
Galactic Longitude102.22°
Galactic Latitude
5.45°
Observational Data
Observed Visual Magnitude (V)5.52
Derived Visual Magnitude
Derived Visual Magnitude or Observed Visual Magnitude Uncertainty0.003
Observed B Magnitude7.07
Observed B-V Colour+1.545
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 Magnitude5.6
Observed Photographic Magnitude7.0
Morgan Keenan (MK) Spectral TypeM1IIIb
One-Dimensional Spectral ClassM0
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))

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