Astronomy
Constellations - Delphinus - 16 Del

 
Identification Data
Common Name
ConstellationDelphinus
Star Name16 Del
Skymap Number20550153
Henry Draper (HD) Number199254
Harvard Revised (HR) Number8012
SAO Number106666
Durchmusterung (DM) NumberBD+12 4501
Washington Double Stars (WDS) Number
20556+1234
Positional Data
Position and Proper Motion (PPM) Number139290
Right Ascension (RA) J200020h 55m 38.571s
Declination (Dec) J2000+12° 34' 6.809"
Position Uncertainty0.0075s
Proper Motion in RA (J2000)/cos(Dec)+0.00213
Proper Motion in Dec (J2000)+0.021166
Radial Velocity+002.0km s-1
Trigonometric Parallax+0.01635s
Trigonometric Parallax Uncertainty0.00073s
GCI Unit Vector in X (J2000)0.676917
GCI Unit Vector in Y (J2000)-0.703157
GCI Unit Vector in Z (J2000)0.217608
Galactic Longitude59.79°
Galactic Latitude
-20.42°
Observational Data
Observed Visual Magnitude (V)5.54
Derived Visual Magnitude
Derived Visual Magnitude or Observed Visual Magnitude Uncertainty0.003
Observed B Magnitude5.67
Observed B-V Colour+0.127
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 Magnitude5.5
Observed Photographic Magnitude5.7
Morgan Keenan (MK) Spectral TypeA4V
One-Dimensional Spectral ClassA2
Position Angle17
Year of Observation1960. 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