Astronomy
Constellations - Cepheus - 4 Cep

 
Identification Data
Common Name
ConstellationCepheus
Star Name4 Cep
Skymap Number20430042
Henry Draper (HD) Number197950
Harvard Revised (HR) Number7945
SAO Number19004
Durchmusterung (DM) NumberBD+66 1318
Washington Double Stars (WDS) Number

Positional Data
Position and Proper Motion (PPM) Number22346
Right Ascension (RA) J200020h 43m 11.020s
Declination (Dec) J2000+66° 39' 26.810"
Position Uncertainty0.0065s
Proper Motion in RA (J2000)/cos(Dec)+0.00423
Proper Motion in Dec (J2000)+0.034766
Radial Velocity-011.0km s-1
Trigonometric Parallax+0.02349s
Trigonometric Parallax Uncertainty0.00049s
GCI Unit Vector in X (J2000)0.258882
GCI Unit Vector in Y (J2000)-0.299961
GCI Unit Vector in Z (J2000)0.918152
Galactic Longitude101.72°
Galactic Latitude
14.68°
Observational Data
Observed Visual Magnitude (V)5.59
Derived Visual Magnitude
Derived Visual Magnitude or Observed Visual Magnitude Uncertainty0.003
Observed B Magnitude5.81
Observed B-V Colour+0.222
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 Magnitude5.6
Observed Photographic Magnitude5.7
Morgan Keenan (MK) Spectral TypeA8V
One-Dimensional Spectral ClassA5
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