Astronomy
Constellations - Cygnus - 2 Cyg

 
Identification Data
Common Name
ConstellationCygnus
Star Name2 Cyg
Skymap Number19240034
Henry Draper (HD) Number182568
Harvard Revised (HR) Number7372
SAO Number87159
Durchmusterung (DM) NumberBD+29 3584
Washington Double Stars (WDS) Number

Positional Data
Position and Proper Motion (PPM) Number108923
Right Ascension (RA) J200019h 24m 7.578s
Declination (Dec) J2000+29° 37' 16.815"
Position Uncertainty0.0068s
Proper Motion in RA (J2000)/cos(Dec)+0.00081
Proper Motion in Dec (J2000)+0.010966
Radial Velocity-024.km s-1
Trigonometric Parallax+0.00421s
Trigonometric Parallax Uncertainty0.00058s
GCI Unit Vector in X (J2000)0.311980
GCI Unit Vector in Y (J2000)-0.811400
GCI Unit Vector in Z (J2000)0.494266
Galactic Longitude62.91°
Galactic Latitude
6.63°
Observational Data
Observed Visual Magnitude (V)4.99
Derived Visual Magnitude
Derived Visual Magnitude or Observed Visual Magnitude Uncertainty0.002
Observed B Magnitude4.87
Observed B-V Colour-0.122
Observed B Magnitude or (B-V) Magnitude Uncertainty0.002
Observed U Magnitude
Observed U-B Colour
Observed U Magnitude or (U-B) Magnitude Uncertainty
Observed Photovisual Magnitude4.9
Observed Photographic Magnitude
Morgan Keenan (MK) Spectral TypeB3IV
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