Astronomy
Constellations - Cepheus - 31 Cep

 
Identification Data
Common Name
ConstellationCepheus
Star Name31 Cep
Skymap Number22350124
Henry Draper (HD) Number214470
Harvard Revised (HR) Number8615
SAO Number10425
Durchmusterung (DM) NumberBD+72 1049
Washington Double Stars (WDS) Number

Positional Data
Position and Proper Motion (PPM) Number11278
Right Ascension (RA) J200022h 35m 46.135s
Declination (Dec) J2000+73° 38' 35.477"
Position Uncertainty0.0060s
Proper Motion in RA (J2000)/cos(Dec)+0.04103
Proper Motion in Dec (J2000)+0.025166
Radial Velocity+000.1km s-1
Trigonometric Parallax+0.01770s
Trigonometric Parallax Uncertainty0.00050s
GCI Unit Vector in X (J2000)0.262811
GCI Unit Vector in Y (J2000)-0.101188
GCI Unit Vector in Z (J2000)0.959527
Galactic Longitude113.64°
Galactic Latitude
13.27°
Observational Data
Observed Visual Magnitude (V)5.08
Derived Visual Magnitude
Derived Visual Magnitude or Observed Visual Magnitude Uncertainty0.002
Observed B Magnitude5.49
Observed B-V Colour+0.412
Observed B Magnitude or (B-V) Magnitude Uncertainty0.003
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 TypeF3III-IV
One-Dimensional Spectral ClassF0
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