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Astronomy
Constellations - Aquila - 27 Aql

 
Identification Data
Common Name
ConstellationAquila
Star Name27 Aql
Skymap Number19200149
Henry Draper (HD) Number181440
Harvard Revised (HR) Number7336
SAO Number143292
Durchmusterung (DM) NumberBD-01 3716
Washington Double Stars (WDS) Number

Positional Data
Position and Proper Motion (PPM) Number180629
Right Ascension (RA) J200019h 20m 35.686s
Declination (Dec) J2000-0° 53' 31.780"
Position Uncertainty0.0082s
Proper Motion in RA (J2000)/cos(Dec)+0.00038
Proper Motion in Dec (J2000)+0.003166
Radial Velocity-027.0km s-1
Trigonometric Parallax+0.00640s
Trigonometric Parallax Uncertainty0.00088s
GCI Unit Vector in X (J2000)0.344416
GCI Unit Vector in Y (J2000)-0.938688
GCI Unit Vector in Z (J2000)-0.015571
Galactic Longitude35.48°
Galactic Latitude
-6.89°
Observational Data
Observed Visual Magnitude (V)5.47
Derived Visual Magnitude
Derived Visual Magnitude or Observed Visual Magnitude Uncertainty0.003
Observed B Magnitude5.43
Observed B-V Colour-0.045
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 Magnitude5.5
Observed Photographic Magnitude5.4
Morgan Keenan (MK) Spectral TypeB9III
One-Dimensional Spectral ClassB9
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 13:15:32 GMT+01:00 2001
 
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