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Astronomy
Constellations - Apus - alp Aps

 
Identification Data
Common Name
ConstellationApus
Star Namealp Aps
Skymap Number14470150
Henry Draper (HD) Number129078
Harvard Revised (HR) Number5470
SAO Number257193
Durchmusterung (DM) NumberCP-78 893
Washington Double Stars (WDS) Number

Positional Data
Position and Proper Motion (PPM) Number372410
Right Ascension (RA) J200014h 47m 51.708s
Declination (Dec) J2000-79° 2' 41.103"
Position Uncertainty0.0057s
Proper Motion in RA (J2000)/cos(Dec)-0.00199
Proper Motion in Dec (J2000)-0.015866
Radial Velocity-001.1km s-1
Trigonometric Parallax+0.00793s
Trigonometric Parallax Uncertainty0.00053s
GCI Unit Vector in X (J2000)-0.141306
GCI Unit Vector in Y (J2000)-0.127078
GCI Unit Vector in Z (J2000)-0.981776
Galactic Longitude308.50°
Galactic Latitude
-17.45°
Observational Data
Observed Visual Magnitude (V)3.81
Derived Visual Magnitude
Derived Visual Magnitude or Observed Visual Magnitude Uncertainty0.002
Observed B Magnitude5.24
Observed B-V Colour+1.432
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 Magnitude3.8
Observed Photographic Magnitude
Morgan Keenan (MK) Spectral TypeK3IIICN0.5
One-Dimensional Spectral ClassK5
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))

 
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Page compiled: Sun Sep 02 13:15:32 GMT+01:00 2001
 
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