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Astronomy
Constellations - Vulpecula - 20 Vul

 
Identification Data
Common Name
ConstellationVulpecula
Star Name20 Vul
Skymap Number20120003
Henry Draper (HD) Number192044
Harvard Revised (HR) Number7719
SAO Number88339
Durchmusterung (DM) NumberBD+26 3828
Washington Double Stars (WDS) Number

Positional Data
Position and Proper Motion (PPM) Number110635
Right Ascension (RA) J200020h 12m 0.701s
Declination (Dec) J2000+26° 28' 43.704"
Position Uncertainty0.0054s
Proper Motion in RA (J2000)/cos(Dec)+0.00033
Proper Motion in Dec (J2000)-0.010166
Radial Velocity-022.0km s-1
Trigonometric Parallax+0.00286s
Trigonometric Parallax Uncertainty0.00065s
GCI Unit Vector in X (J2000)0.487544
GCI Unit Vector in Y (J2000)-0.750669
GCI Unit Vector in Z (J2000)0.445867
Galactic Longitude65.53°
Galactic Latitude
-4.07°
Observational Data
Observed Visual Magnitude (V)5.91
Derived Visual Magnitude
Derived Visual Magnitude or Observed Visual Magnitude Uncertainty0.003
Observed B Magnitude5.80
Observed B-V Colour-0.111
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 Magnitude5.9
Observed Photographic Magnitude5.9
Morgan Keenan (MK) Spectral TypeB7Ve
One-Dimensional Spectral ClassB8
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 13:15:53 GMT+01:00 2001
 
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