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Astronomy
Constellations - Circinus - alp Cir

 
Identification Data
Common Name
ConstellationCircinus
Star Namealp Cir
Skymap Number14420079
Henry Draper (HD) Number128898
Harvard Revised (HR) Number5463
SAO Number252853
Durchmusterung (DM) NumberCP-64 2977
Washington Double Stars (WDS) Number
14425-6459
Positional Data
Position and Proper Motion (PPM) Number360934
Right Ascension (RA) J200014h 42m 30.419s
Declination (Dec) J2000-64° 58' 30.499"
Position Uncertainty0.0055s
Proper Motion in RA (J2000)/cos(Dec)-0.03036
Proper Motion in Dec (J2000)-0.234166
Radial Velocity+007.2km s-1
Trigonometric Parallax+0.06097s
Trigonometric Parallax Uncertainty0.00058s
GCI Unit Vector in X (J2000)-0.321052
GCI Unit Vector in Y (J2000)-0.275435
GCI Unit Vector in Z (J2000)-0.906124
Galactic Longitude314.34°
Galactic Latitude
-4.59°
Observational Data
Observed Visual Magnitude (V)3.18
Derived Visual Magnitude
Derived Visual Magnitude or Observed Visual Magnitude Uncertainty0.002
Observed B Magnitude3.45
Observed B-V Colour+0.269
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 Magnitude3.4
Observed Photographic Magnitude3.7
Morgan Keenan (MK) Spectral TypeApSrEuCr:
One-Dimensional Spectral ClassF0
Position Angle227
Year of Observation1990. 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 13:15:37 GMT+01:00 2001
 
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