Astronomy
Constellations - Puppis - 21 Pup

 
Identification Data
Common Name
ConstellationPuppis
Star Name21 Pup
Skymap Number8170093
Henry Draper (HD) Number69665
Harvard Revised (HR) Number3257
SAO Number154076
Durchmusterung (DM) NumberSD-15 2362
Washington Double Stars (WDS) Number

Positional Data
Position and Proper Motion (PPM) Number219914
Right Ascension (RA) J20008h 17m 23.132s
Declination (Dec) J2000-16° 17' 6.401"
Position Uncertainty0.0075s
Proper Motion in RA (J2000)/cos(Dec)-0.00082
Proper Motion in Dec (J2000)-0.007766
Radial Velocity0.km s-1
Trigonometric Parallax+0.00380s
Trigonometric Parallax Uncertainty0.00078s
GCI Unit Vector in X (J2000)-0.541558
GCI Unit Vector in Y (J2000)0.792516
GCI Unit Vector in Z (J2000)-0.280417
Galactic Longitude237.59°
Galactic Latitude
10.66°
Observational Data
Observed Visual Magnitude (V)6.31
Derived Visual Magnitude
Derived Visual Magnitude or Observed Visual Magnitude Uncertainty0.005
Observed B Magnitude6.36
Observed B-V Colour+0.053
Observed B Magnitude or (B-V) Magnitude Uncertainty0.006
Observed U Magnitude
Observed U-B Colour
Observed U Magnitude or (U-B) Magnitude Uncertainty
Observed Photovisual Magnitude6.7
Observed Photographic Magnitude6.3
Morgan Keenan (MK) Spectral TypeA2V
One-Dimensional Spectral ClassA0
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