Astronomy
Constellations - Cassiopeia - 20pi Cas

 
Identification Data
Common Name
ConstellationCassiopeia
Star Name20pi Cas
Skymap Number430060
Henry Draper (HD) Number4058
Harvard Revised (HR) Number184
SAO Number36602
Durchmusterung (DM) NumberBD+46 146
Washington Double Stars (WDS) Number

Positional Data
Position and Proper Motion (PPM) Number43240
Right Ascension (RA) J20000h 43m 28.069s
Declination (Dec) J2000+47° 1' 28.367"
Position Uncertainty0.0056s
Proper Motion in RA (J2000)/cos(Dec)-0.00240
Proper Motion in Dec (J2000)-0.037266
Radial Velocity+013.4km s-1
Trigonometric Parallax+0.01871s
Trigonometric Parallax Uncertainty0.00073s
GCI Unit Vector in X (J2000)0.669461
GCI Unit Vector in Y (J2000)0.128517
GCI Unit Vector in Z (J2000)0.731646
Galactic Longitude121.53°
Galactic Latitude
-15.82°
Observational Data
Observed Visual Magnitude (V)4.96
Derived Visual Magnitude
Derived Visual Magnitude or Observed Visual Magnitude Uncertainty0.002
Observed B Magnitude5.14
Observed B-V Colour+0.175
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 Magnitude5.0
Observed Photographic Magnitude5.2
Morgan Keenan (MK) Spectral TypeA5V
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