Astronomy
Constellations - Taurus - 61del1Tau (Hyadum Ii)

 
Identification Data
Common NameHyadum Ii
ConstellationTaurus
Star Name61del1Tau
Skymap Number4220123
Henry Draper (HD) Number27697
Harvard Revised (HR) Number1373
SAO Number93897
Durchmusterung (DM) NumberBD+17 712
Washington Double Stars (WDS) Number
04229+1733
Positional Data
Position and Proper Motion (PPM) Number119835
Right Ascension (RA) J20004h 22m 56.093s
Declination (Dec) J2000+17° 32' 33.051"
Position Uncertainty0.0124s
Proper Motion in RA (J2000)/cos(Dec)+0.00753
Proper Motion in Dec (J2000)-0.028866
Radial Velocity+039.0km s-1
Trigonometric Parallax+0.02129s
Trigonometric Parallax Uncertainty0.00093s
GCI Unit Vector in X (J2000)0.391865
GCI Unit Vector in Y (J2000)0.869248
GCI Unit Vector in Z (J2000)0.301413
Galactic Longitude178.02°
Galactic Latitude
-22.01°
Observational Data
Observed Visual Magnitude (V)3.76
Derived Visual Magnitude
Derived Visual Magnitude or Observed Visual Magnitude Uncertainty0.002
Observed B Magnitude4.75
Observed B-V Colour+0.989
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 Magnitude3.9
Observed Photographic Magnitude
Morgan Keenan (MK) Spectral TypeG9.5IIICN0.5
One-Dimensional Spectral ClassK0
Position Angle338
Year of Observation1959. 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