Astronomy
Constellations - Delphinus - 4zet Del

 
Identification Data
Common Name
ConstellationDelphinus
Star Name4zet Del
Skymap Number20350074
Henry Draper (HD) Number196180
Harvard Revised (HR) Number7871
SAO Number106274
Durchmusterung (DM) NumberBD+14 4353
Washington Double Stars (WDS) Number

Positional Data
Position and Proper Motion (PPM) Number138649
Right Ascension (RA) J200020h 35m 18.535s
Declination (Dec) J2000+14° 40' 27.168"
Position Uncertainty0.0083s
Proper Motion in RA (J2000)/cos(Dec)+0.00311
Proper Motion in Dec (J2000)+0.011766
Radial Velocity-025.0km s-1
Trigonometric Parallax+0.01436s
Trigonometric Parallax Uncertainty0.00075s
GCI Unit Vector in X (J2000)0.606523
GCI Unit Vector in Y (J2000)-0.753629
GCI Unit Vector in Z (J2000)0.253323
Galactic Longitude58.64°
Galactic Latitude
-15.16°
Observational Data
Observed Visual Magnitude (V)4.66
Derived Visual Magnitude
Derived Visual Magnitude or Observed Visual Magnitude Uncertainty0.002
Observed B Magnitude4.77
Observed B-V Colour+0.106
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 Magnitude4.7
Observed Photographic Magnitude4.7
Morgan Keenan (MK) Spectral TypeA3V
One-Dimensional Spectral ClassA2
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