Astronomy
Constellations - Draco - 20 Dra

 
Identification Data
Common Name
ConstellationDraco
Star Name20 Dra
Skymap Number16560085
Henry Draper (HD) Number153697
Harvard Revised (HR) Number6319
SAO Number17285
Durchmusterung (DM) NumberBD+65 1159
Washington Double Stars (WDS) Number
16564+6502
Positional Data
Position and Proper Motion (PPM) Number20133
Right Ascension (RA) J200016h 56m 25.267s
Declination (Dec) J2000+65° 2' 20.848"
Position Uncertainty0.0109s
Proper Motion in RA (J2000)/cos(Dec)-0.00544
Proper Motion in Dec (J2000)+0.032767
Radial Velocity-020.3km s-1
Trigonometric Parallax+0.01490s
Trigonometric Parallax Uncertainty0.00089s
GCI Unit Vector in X (J2000)-0.115573
GCI Unit Vector in Y (J2000)-0.405865
GCI Unit Vector in Z (J2000)0.906596
Galactic Longitude95.55°
Galactic Latitude
36.45°
Observational Data
Observed Visual Magnitude (V)6.44
Derived Visual Magnitude
Derived Visual Magnitude or Observed Visual Magnitude Uncertainty0.012
Observed B Magnitude6.79
Observed B-V Colour+0.348
Observed B Magnitude or (B-V) Magnitude Uncertainty0.016
Observed U Magnitude
Observed U-B Colour
Observed U Magnitude or (U-B) Magnitude Uncertainty
Observed Photovisual Magnitude6.4
Observed Photographic Magnitude6.7
Morgan Keenan (MK) Spectral TypeF1-3V
One-Dimensional Spectral ClassF0
Position Angle68
Year of Observation1992. 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 13:15:39 GMT+01:00 2001