Astronomy
Constellations - Delphinus - 17 Del

 
Identification Data
Common Name
ConstellationDelphinus
Star Name17 Del
Skymap Number20550139
Henry Draper (HD) Number199253
Harvard Revised (HR) Number8011
SAO Number106665
Durchmusterung (DM) NumberBD+13 4572
Washington Double Stars (WDS) Number

Positional Data
Position and Proper Motion (PPM) Number139287
Right Ascension (RA) J200020h 55m 36.690s
Declination (Dec) J2000+13° 43' 17.529"
Position Uncertainty0.0071s
Proper Motion in RA (J2000)/cos(Dec)+0.00126
Proper Motion in Dec (J2000)-0.011566
Radial Velocity-010.2km s-1
Trigonometric Parallax+0.00688s
Trigonometric Parallax Uncertainty0.00074s
GCI Unit Vector in X (J2000)0.673647
GCI Unit Vector in Y (J2000)-0.699953
GCI Unit Vector in Z (J2000)0.237203
Galactic Longitude60.78°
Galactic Latitude
-19.74°
Observational Data
Observed Visual Magnitude (V)5.19
Derived Visual Magnitude
Derived Visual Magnitude or Observed Visual Magnitude Uncertainty0.002
Observed B Magnitude6.31
Observed B-V Colour+1.116
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 Magnitude5.4
Observed Photographic Magnitude
Morgan Keenan (MK) Spectral TypeK0III
One-Dimensional Spectral ClassK0
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 13:15:39 GMT+01:00 2001