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Astronomy
Constellations - Pavo - alp Pav (Peacock)

 
Identification Data
Common NamePeacock
ConstellationPavo
Star Namealp Pav
Skymap Number20250162
Henry Draper (HD) Number193924
Harvard Revised (HR) Number7790
SAO Number246574
Durchmusterung (DM) NumberCP-57 9674
Washington Double Stars (WDS) Number
20256-5644
Positional Data
Position and Proper Motion (PPM) Number348537
Right Ascension (RA) J200020h 25m 38.857s
Declination (Dec) J2000-56° 44' 6.324"
Position Uncertainty0.0065s
Proper Motion in RA (J2000)/cos(Dec)+0.00094
Proper Motion in Dec (J2000)-0.086266
Radial Velocity+002.0km s-1
Trigonometric Parallax+0.01780s
Trigonometric Parallax Uncertainty0.00070s
GCI Unit Vector in X (J2000)0.325588
GCI Unit Vector in Y (J2000)-0.441425
GCI Unit Vector in Z (J2000)-0.836143
Galactic Longitude340.91°
Galactic Latitude
-35.19°
Observational Data
Observed Visual Magnitude (V)1.92
Derived Visual Magnitude
Derived Visual Magnitude or Observed Visual Magnitude Uncertainty0.006
Observed B Magnitude1.80
Observed B-V Colour-0.120
Observed B Magnitude or (B-V) Magnitude Uncertainty0.008
Observed U Magnitude
Observed U-B Colour
Observed U Magnitude or (U-B) Magnitude Uncertainty
Observed Photovisual Magnitude2.1
Observed Photographic Magnitude2.0
Morgan Keenan (MK) Spectral TypeB2IV
One-Dimensional Spectral ClassB3
Position Angle84
Year of Observation1879. 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))

 
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Page compiled: Sun Sep 02 13:15:47 GMT+01:00 2001
 
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