Astronomy
Constellations - Perseus - 22pi Per (Gorgonea Secunda)

 
Identification Data
Common NameGorgonea Secunda
ConstellationPerseus
Star Name22pi Per
Skymap Number2580089
Henry Draper (HD) Number18411
Harvard Revised (HR) Number879
SAO Number56047
Durchmusterung (DM) NumberBD+39 681
Washington Double Stars (WDS) Number

Positional Data
Position and Proper Motion (PPM) Number67966
Right Ascension (RA) J20002h 58m 45.670s
Declination (Dec) J2000+39° 39' 45.823"
Position Uncertainty0.0104s
Proper Motion in RA (J2000)/cos(Dec)+0.00224
Proper Motion in Dec (J2000)-0.040766
Radial Velocity+014.2km s-1
Trigonometric Parallax+0.01002s
Trigonometric Parallax Uncertainty0.00109s
GCI Unit Vector in X (J2000)0.547276
GCI Unit Vector in Y (J2000)0.541391
GCI Unit Vector in Z (J2000)0.638267
Galactic Longitude148.05°
Galactic Latitude
-16.92°
Observational Data
Observed Visual Magnitude (V)4.69
Derived Visual Magnitude
Derived Visual Magnitude or Observed Visual Magnitude Uncertainty0.003
Observed B Magnitude4.76
Observed B-V Colour+0.069
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 Magnitude4.6
Observed Photographic Magnitude
Morgan Keenan (MK) Spectral TypeA2Vn
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 13:15:47 GMT+01:00 2001