Astronomy
Constellations - Taurus - 20 Tau (Maia)

 
Identification Data
Common NameMaia
ConstellationTaurus
Star Name20 Tau
Skymap Number3450121
Henry Draper (HD) Number23408
Harvard Revised (HR) Number1149
SAO Number76155
Durchmusterung (DM) NumberBD+23 516
Washington Double Stars (WDS) Number

Positional Data
Position and Proper Motion (PPM) Number92841
Right Ascension (RA) J20003h 45m 49.606s
Declination (Dec) J2000+24° 22' 3.895"
Position Uncertainty0.0094s
Proper Motion in RA (J2000)/cos(Dec)+0.00154
Proper Motion in Dec (J2000)-0.045066
Radial Velocity+007.6km s-1
Trigonometric Parallax+0.00906s
Trigonometric Parallax Uncertainty0.00103s
GCI Unit Vector in X (J2000)0.503342
GCI Unit Vector in Y (J2000)0.759220
GCI Unit Vector in Z (J2000)0.412592
Galactic Longitude166.18°
Galactic Latitude
-23.51°
Observational Data
Observed Visual Magnitude (V)3.88
Derived Visual Magnitude
Derived Visual Magnitude or Observed Visual Magnitude Uncertainty0.003
Observed B Magnitude3.82
Observed B-V Colour-0.063
Observed B Magnitude or (B-V) Magnitude Uncertainty0.004
Observed U Magnitude
Observed U-B Colour
Observed U Magnitude or (U-B) Magnitude Uncertainty
Observed Photovisual Magnitude4.0
Observed Photographic Magnitude3.9
Morgan Keenan (MK) Spectral TypeB8III
One-Dimensional Spectral ClassB5
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 13:15:50 GMT+01:00 2001