Astronomy
Constellations - Cepheus - 21zet Cep

 
Identification Data
Common Name
ConstellationCepheus
Star Name21zet Cep
Skymap Number22100159
Henry Draper (HD) Number210745
Harvard Revised (HR) Number8465
SAO Number34137
Durchmusterung (DM) NumberBD+57 2475
Washington Double Stars (WDS) Number

Positional Data
Position and Proper Motion (PPM) Number40311
Right Ascension (RA) J200022h 10m 51.276s
Declination (Dec) J2000+58° 12' 4.539"
Position Uncertainty0.0052s
Proper Motion in RA (J2000)/cos(Dec)+0.00169
Proper Motion in Dec (J2000)+0.004566
Radial Velocity-019.1km s-1
Trigonometric Parallax+0.00449s
Trigonometric Parallax Uncertainty0.00050s
GCI Unit Vector in X (J2000)0.468303
GCI Unit Vector in Y (J2000)-0.241568
GCI Unit Vector in Z (J2000)0.849904
Galactic Longitude103.07°
Galactic Latitude
1.67°
Observational Data
Observed Visual Magnitude (V)3.34
Derived Visual Magnitude
Derived Visual Magnitude or Observed Visual Magnitude Uncertainty0.002
Observed B Magnitude4.90
Observed B-V Colour+1.562
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 Magnitude3.6
Observed Photographic Magnitude
Morgan Keenan (MK) Spectral TypeK1.5Ib
One-Dimensional Spectral ClassK0
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