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Astronomy
Constellations - Cygnus - 8 Cyg

 
Identification Data
Common Name
ConstellationCygnus
Star Name8 Cyg
Skymap Number19310184
Henry Draper (HD) Number184171
Harvard Revised (HR) Number7426
SAO Number68447
Durchmusterung (DM) NumberBD+34 3590
Washington Double Stars (WDS) Number

Positional Data
Position and Proper Motion (PPM) Number83069
Right Ascension (RA) J200019h 31m 46.321s
Declination (Dec) J2000+34° 27' 10.686"
Position Uncertainty0.0057s
Proper Motion in RA (J2000)/cos(Dec)+0.00009
Proper Motion in Dec (J2000)-0.003666
Radial Velocity-020.8km s-1
Trigonometric Parallax+0.00520s
Trigonometric Parallax Uncertainty0.00055s
GCI Unit Vector in X (J2000)0.321438
GCI Unit Vector in Y (J2000)-0.759360
GCI Unit Vector in Z (J2000)0.565730
Galactic Longitude67.98°
Galactic Latitude
7.44°
Observational Data
Observed Visual Magnitude (V)4.74
Derived Visual Magnitude
Derived Visual Magnitude or Observed Visual Magnitude Uncertainty0.002
Observed B Magnitude4.60
Observed B-V Colour-0.145
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 Magnitude4.9
Observed Photographic Magnitude
Morgan Keenan (MK) Spectral TypeB3IV
One-Dimensional Spectral ClassB3
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))

 
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Page compiled: Sun Sep 02 13:15:39 GMT+01:00 2001
 
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