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Astronomy
Constellations - Tucana - alp Tuc

 
Identification Data
Common Name
ConstellationTucana
Star Namealp Tuc
Skymap Number22180097
Henry Draper (HD) Number211416
Harvard Revised (HR) Number8502
SAO Number255193
Durchmusterung (DM) NumberCP-60 7561
Washington Double Stars (WDS) Number

Positional Data
Position and Proper Motion (PPM) Number365714
Right Ascension (RA) J200022h 18m 30.094s
Declination (Dec) J2000-60° 15' 34.515"
Position Uncertainty0.0186s
Proper Motion in RA (J2000)/cos(Dec)-0.00961
Proper Motion in Dec (J2000)-0.038266
Radial Velocity+042.2km s-1
Trigonometric Parallax+0.01642s
Trigonometric Parallax Uncertainty0.00059s
GCI Unit Vector in X (J2000)0.448213
GCI Unit Vector in Y (J2000)-0.212584
GCI Unit Vector in Z (J2000)-0.868282
Galactic Longitude330.22°
Galactic Latitude
-47.96°
Observational Data
Observed Visual Magnitude (V)2.86
Derived Visual Magnitude
Derived Visual Magnitude or Observed Visual Magnitude Uncertainty0.002
Observed B Magnitude4.25
Observed B-V Colour+1.393
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 Magnitude2.9
Observed Photographic Magnitude4.0
Morgan Keenan (MK) Spectral TypeK3III
One-Dimensional Spectral ClassK2
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 13:15:51 GMT+01:00 2001
 
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