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Astronomy
Constellations - Draco - 57del Dra (Nodus Secundus)

 
Identification Data
Common NameNodus Secundus
ConstellationDraco
Star Name57del Dra
Skymap Number19120124
Henry Draper (HD) Number180711
Harvard Revised (HR) Number7310
SAO Number18222
Durchmusterung (DM) NumberBD+67 1129
Washington Double Stars (WDS) Number
19126+6740
Positional Data
Position and Proper Motion (PPM) Number21358
Right Ascension (RA) J200019h 12m 33.300s
Declination (Dec) J2000+67° 39' 41.549"
Position Uncertainty0.0057s
Proper Motion in RA (J2000)/cos(Dec)+0.01657
Proper Motion in Dec (J2000)+0.092366
Radial Velocity+024.8km s-1
Trigonometric Parallax+0.03254s
Trigonometric Parallax Uncertainty0.00046s
GCI Unit Vector in X (J2000)0.118325
GCI Unit Vector in Y (J2000)-0.361189
GCI Unit Vector in Z (J2000)0.924955
Galactic Longitude98.66°
Galactic Latitude
23.00°
Observational Data
Observed Visual Magnitude (V)3.08
Derived Visual Magnitude
Derived Visual Magnitude or Observed Visual Magnitude Uncertainty0.002
Observed B Magnitude4.08
Observed B-V Colour+1.003
Observed B Magnitude or (B-V) Magnitude Uncertainty0.002
Observed U Magnitude
Observed U-B Colour
Observed U Magnitude or (U-B) Magnitude Uncertainty
Observed Photovisual Magnitude3.2
Observed Photographic Magnitude
Morgan Keenan (MK) Spectral TypeG9III
One-Dimensional Spectral ClassK0
Position Angle352
Year of Observation1907. 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))

 
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Page compiled: Sun Sep 02 13:15:40 GMT+01:00 2001
 
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