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Astronomy
Constellations - Ara - del Ara

 
Identification Data
Common Name
ConstellationAra
Star Namedel Ara
Skymap Number17310023
Henry Draper (HD) Number158094
Harvard Revised (HR) Number6500
SAO Number253945
Durchmusterung (DM) NumberCP-60 6842
Washington Double Stars (WDS) Number
17311-6041
Positional Data
Position and Proper Motion (PPM) Number362756
Right Ascension (RA) J200017h 31m 5.913s
Declination (Dec) J2000-60° 41' 1.854"
Position Uncertainty0.0130s
Proper Motion in RA (J2000)/cos(Dec)-0.00731
Proper Motion in Dec (J2000)-0.099466
Radial Velocity+010.0km s-1
Trigonometric Parallax+0.01742s
Trigonometric Parallax Uncertainty0.00073s
GCI Unit Vector in X (J2000)-0.061582
GCI Unit Vector in Y (J2000)-0.485740
GCI Unit Vector in Z (J2000)-0.871931
Galactic Longitude331.28°
Galactic Latitude
-14.36°
Observational Data
Observed Visual Magnitude (V)3.60
Derived Visual Magnitude
Derived Visual Magnitude or Observed Visual Magnitude Uncertainty0.002
Observed B Magnitude3.51
Observed B-V Colour-0.090
Observed B Magnitude or (B-V) Magnitude Uncertainty0.002
Observed U Magnitude
Observed U-B Colour
Observed U Magnitude or (U-B) Magnitude Uncertainty
Observed Photovisual Magnitude3.8
Observed Photographic Magnitude3.7
Morgan Keenan (MK) Spectral TypeB8Vn
One-Dimensional Spectral ClassB8
Position Angle320
Year of Observation1983. 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 13:15:33 GMT+01:00 2001
 
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