Astronomy
Constellations - Cepheus - 29rho2Cep (Al Kalb al Rai)

 
Identification Data
Common NameAl Kalb al Rai
ConstellationCepheus
Star Name29rho2Cep
Skymap Number22290161
Henry Draper (HD) Number213798
Harvard Revised (HR) Number8591
SAO Number10402
Durchmusterung (DM) NumberBD+78 801
Washington Double Stars (WDS) Number

Positional Data
Position and Proper Motion (PPM) Number11249
Right Ascension (RA) J200022h 29m 52.978s
Declination (Dec) J2000+78° 49' 27.425"
Position Uncertainty0.0069s
Proper Motion in RA (J2000)/cos(Dec)+0.00119
Proper Motion in Dec (J2000)-0.021766
Radial Velocity+002.8km s-1
Trigonometric Parallax+0.01375s
Trigonometric Parallax Uncertainty0.00052s
GCI Unit Vector in X (J2000)0.179027
GCI Unit Vector in Y (J2000)-0.074263
GCI Unit Vector in Z (J2000)0.981037
Galactic Longitude116.16°
Galactic Latitude
17.86°
Observational Data
Observed Visual Magnitude (V)5.45
Derived Visual Magnitude
Derived Visual Magnitude or Observed Visual Magnitude Uncertainty0.003
Observed B Magnitude5.54
Observed B-V Colour+0.088
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 Magnitude5.5
Observed Photographic Magnitude
Morgan Keenan (MK) Spectral TypeA3V
One-Dimensional Spectral ClassA2
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