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Astronomy
Constellations - Cepheus - 18 Cep

 
Identification Data
Common Name
ConstellationCepheus
Star Name18 Cep
Skymap Number22030134
Henry Draper (HD) Number209772
Harvard Revised (HR) Number8416
SAO Number19828
Durchmusterung (DM) NumberBD+62 2028
Washington Double Stars (WDS) Number

Positional Data
Position and Proper Motion (PPM) Number23421
Right Ascension (RA) J200022h 3m 52.977s
Declination (Dec) J2000+63° 7' 11.714"
Position Uncertainty0.0057s
Proper Motion in RA (J2000)/cos(Dec)+0.00541
Proper Motion in Dec (J2000)+0.058366
Radial Velocity-004.3km s-1
Trigonometric Parallax+0.00727s
Trigonometric Parallax Uncertainty0.00047s
GCI Unit Vector in X (J2000)0.395325
GCI Unit Vector in Y (J2000)-0.219396
GCI Unit Vector in Z (J2000)0.891955
Galactic Longitude105.26°
Galactic Latitude
6.15°
Observational Data
Observed Visual Magnitude (V)5.29
Derived Visual Magnitude
Derived Visual Magnitude or Observed Visual Magnitude Uncertainty0.005
Observed B Magnitude6.77
Observed B-V Colour+1.477
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 Magnitude5.5
Observed Photographic Magnitude7.0
Morgan Keenan (MK) Spectral TypeM5IIIab
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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