Astronomy
Constellations - Cygnus - 25 Cyg

 
Identification Data
Common Name
ConstellationCygnus
Star Name25 Cyg
Skymap Number19590212
Henry Draper (HD) Number189687
Harvard Revised (HR) Number7647
SAO Number69231
Durchmusterung (DM) NumberBD+36 3806
Washington Double Stars (WDS) Number

Positional Data
Position and Proper Motion (PPM) Number83988
Right Ascension (RA) J200019h 59m 55.195s
Declination (Dec) J2000+37° 2' 34.388"
Position Uncertainty0.0046s
Proper Motion in RA (J2000)/cos(Dec)+0.00003
Proper Motion in Dec (J2000)-0.000266
Radial Velocity-003.0km s-1
Trigonometric Parallax+0.00207s
Trigonometric Parallax Uncertainty0.00050s
GCI Unit Vector in X (J2000)0.398851
GCI Unit Vector in Y (J2000)-0.691388
GCI Unit Vector in Z (J2000)0.602413
Galactic Longitude73.08°
Galactic Latitude
3.76°
Observational Data
Observed Visual Magnitude (V)5.15
Derived Visual Magnitude
Derived Visual Magnitude or Observed Visual Magnitude Uncertainty0.003
Observed B Magnitude5.02
Observed B-V Colour-0.135
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 Magnitude5.2
Observed Photographic Magnitude5.0
Morgan Keenan (MK) Spectral TypeB3IVe
One-Dimensional Spectral ClassB3
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