Astronomy
Constellations - Taurus - 27 Tau (Atlas)

 
Identification Data
Common NameAtlas
ConstellationTaurus
Star Name27 Tau
Skymap Number3490031
Henry Draper (HD) Number23850
Harvard Revised (HR) Number1178
SAO Number76228
Durchmusterung (DM) NumberBD+23 557
Washington Double Stars (WDS) Number
03492+2403
Positional Data
Position and Proper Motion (PPM) Number92934
Right Ascension (RA) J20003h 49m 9.742s
Declination (Dec) J2000+24° 3' 12.296"
Position Uncertainty0.0104s
Proper Motion in RA (J2000)/cos(Dec)+0.00130
Proper Motion in Dec (J2000)-0.044766
Radial Velocity+008.5km s-1
Trigonometric Parallax+0.00857s
Trigonometric Parallax Uncertainty0.00103s
GCI Unit Vector in X (J2000)0.493455
GCI Unit Vector in Y (J2000)0.768358
GCI Unit Vector in Z (J2000)0.407588
Galactic Longitude167.02°
Galactic Latitude
-23.23°
Observational Data
Observed Visual Magnitude (V)3.63
Derived Visual Magnitude
Derived Visual Magnitude or Observed Visual Magnitude Uncertainty0.003
Observed B Magnitude3.55
Observed B-V Colour-0.077
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 TypeB8III
One-Dimensional Spectral ClassB8
Position Angle
Year of Observation1929. 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