Astronomy
Constellations - Puppis - tau Pup

 
Identification Data
Common Name
ConstellationPuppis
Star Nametau Pup
Skymap Number6490240
Henry Draper (HD) Number50310
Harvard Revised (HR) Number2553
SAO Number234735
Durchmusterung (DM) NumberCD-50 2415
Washington Double Stars (WDS) Number

Positional Data
Position and Proper Motion (PPM) Number335509
Right Ascension (RA) J20006h 49m 56.168s
Declination (Dec) J2000-50° 36' 52.415"
Position Uncertainty0.0099s
Proper Motion in RA (J2000)/cos(Dec)+0.00360
Proper Motion in Dec (J2000)-0.065966
Radial Velocity+036.4km s-1
Trigonometric Parallax+0.01785s
Trigonometric Parallax Uncertainty0.00049s
GCI Unit Vector in X (J2000)-0.137166
GCI Unit Vector in Y (J2000)0.619531
GCI Unit Vector in Z (J2000)-0.772895
Galactic Longitude260.16°
Galactic Latitude
-20.86°
Observational Data
Observed Visual Magnitude (V)2.94
Derived Visual Magnitude
Derived Visual Magnitude or Observed Visual Magnitude Uncertainty0.002
Observed B Magnitude4.15
Observed B-V Colour+1.206
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 Magnitude2.8
Observed Photographic Magnitude3.8
Morgan Keenan (MK) Spectral TypeK1III
One-Dimensional Spectral ClassK0
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 13:15:48 GMT+01:00 2001