Astronomy
Constellations - Aquila - 13eps Aql (Deneb el Okab)

 
Identification Data
Common NameDeneb el Okab
ConstellationAquila
Star Name13eps Aql
Skymap Number18590133
Henry Draper (HD) Number176411
Harvard Revised (HR) Number7176
SAO Number104318
Durchmusterung (DM) NumberBD+14 3736
Washington Double Stars (WDS) Number
18596+1504
Positional Data
Position and Proper Motion (PPM) Number135586
Right Ascension (RA) J200018h 59m 37.357s
Declination (Dec) J2000+15° 4' 5.873"
Position Uncertainty0.0113s
Proper Motion in RA (J2000)/cos(Dec)-0.00364
Proper Motion in Dec (J2000)-0.073866
Radial Velocity-048.0km s-1
Trigonometric Parallax+0.02122s
Trigonometric Parallax Uncertainty0.00077s
GCI Unit Vector in X (J2000)0.248384
GCI Unit Vector in Y (J2000)-0.933124
GCI Unit Vector in Z (J2000)0.259970
Galactic Longitude47.30°
Galactic Latitude
5.04°
Observational Data
Observed Visual Magnitude (V)4.02
Derived Visual Magnitude
Derived Visual Magnitude or Observed Visual Magnitude Uncertainty0.003
Observed B Magnitude5.09
Observed B-V Colour+1.067
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 Magnitude4.2
Observed Photographic Magnitude
Morgan Keenan (MK) Spectral TypeK1-IIICN0.5
One-Dimensional Spectral ClassK0
Position Angle186
Year of Observation1921. 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