Astronomy
Constellations - Aquila - 42 Aql

 
Identification Data
Common Name
ConstellationAquila
Star Name42 Aql
Skymap Number19370188
Henry Draper (HD) Number185124
Harvard Revised (HR) Number7460
SAO Number143621
Durchmusterung (DM) NumberSD-04 4861
Washington Double Stars (WDS) Number

Positional Data
Position and Proper Motion (PPM) Number203110
Right Ascension (RA) J200019h 37m 47.317s
Declination (Dec) J2000-4° 38' 51.504"
Position Uncertainty0.0078s
Proper Motion in RA (J2000)/cos(Dec)+0.00701
Proper Motion in Dec (J2000)-0.053666
Radial Velocity-037.6km s-1
Trigonometric Parallax+0.03114s
Trigonometric Parallax Uncertainty0.00086s
GCI Unit Vector in X (J2000)0.412493
GCI Unit Vector in Y (J2000)-0.907350
GCI Unit Vector in Z (J2000)-0.081028
Galactic Longitude34.06°
Galactic Latitude
-12.42°
Observational Data
Observed Visual Magnitude (V)5.45
Derived Visual Magnitude
Derived Visual Magnitude or Observed Visual Magnitude Uncertainty0.003
Observed B Magnitude5.88
Observed B-V Colour+0.430
Observed B Magnitude or (B-V) Magnitude Uncertainty0.004
Observed U Magnitude
Observed U-B Colour
Observed U Magnitude or (U-B) Magnitude Uncertainty
Observed Photovisual Magnitude5.6
Observed Photographic Magnitude5.9
Morgan Keenan (MK) Spectral TypeF3IV
One-Dimensional Spectral ClassF2
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))

 
Page compiled: Sun Sep 02 13:15:32 GMT+01:00 2001