Astronomy
Constellations - Ara - zet Ara

 
Identification Data
Common Name
ConstellationAra
Star Namezet Ara
Skymap Number16580108
Henry Draper (HD) Number152786
Harvard Revised (HR) Number6285
SAO Number244315
Durchmusterung (DM) NumberCP-55 7766
Washington Double Stars (WDS) Number

Positional Data
Position and Proper Motion (PPM) Number345563
Right Ascension (RA) J200016h 58m 37.211s
Declination (Dec) J2000-55° 59' 24.507"
Position Uncertainty0.0085s
Proper Motion in RA (J2000)/cos(Dec)-0.00218
Proper Motion in Dec (J2000)-0.035366
Radial Velocity-006.0km s-1
Trigonometric Parallax+0.00568s
Trigonometric Parallax Uncertainty0.00091s
GCI Unit Vector in X (J2000)-0.148017
GCI Unit Vector in Y (J2000)-0.539395
GCI Unit Vector in Z (J2000)-0.828941
Galactic Longitude332.81°
Galactic Latitude
-8.20°
Observational Data
Observed Visual Magnitude (V)3.11
Derived Visual Magnitude
Derived Visual Magnitude or Observed Visual Magnitude Uncertainty0.004
Observed B Magnitude4.72
Observed B-V Colour+1.611
Observed B Magnitude or (B-V) Magnitude Uncertainty0.005
Observed U Magnitude
Observed U-B Colour
Observed U Magnitude or (U-B) Magnitude Uncertainty
Observed Photovisual Magnitude3.1
Observed Photographic Magnitude
Morgan Keenan (MK) Spectral TypeK3III
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))

 
Page compiled: Sun Sep 02 13:15:33 GMT+01:00 2001