Astronomy
Constellations - Cygnus - 49 Cyg

 
Identification Data
Common Name
ConstellationCygnus
Star Name49 Cyg
Skymap Number20410009
Henry Draper (HD) Number197177
Harvard Revised (HR) Number7921
SAO Number70362
Durchmusterung (DM) NumberBD+31 4181
Washington Double Stars (WDS) Number
20410+3218
Positional Data
Position and Proper Motion (PPM) Number400274
Right Ascension (RA) J200020h 41m 2.542s
Declination (Dec) J2000+32° 18' 26.234"
Position Uncertainty0.0053s
Proper Motion in RA (J2000)/cos(Dec)+0.00023
Proper Motion in Dec (J2000)-0.011867
Radial Velocity-028.7km s-1
Trigonometric Parallax+0.00405s
Trigonometric Parallax Uncertainty0.00057s
GCI Unit Vector in X (J2000)0.546219
GCI Unit Vector in Y (J2000)-0.644978
GCI Unit Vector in Z (J2000)0.534460
Galactic Longitude73.97°
Galactic Latitude
-5.88°
Observational Data
Observed Visual Magnitude (V)5.51
Derived Visual Magnitude
Derived Visual Magnitude or Observed Visual Magnitude Uncertainty0.050
Observed B Magnitude6.39
Observed B-V Colour+0.88
Observed B Magnitude or (B-V) Magnitude Uncertainty0.050
Observed U Magnitude
Observed U-B Colour
Observed U Magnitude or (U-B) Magnitude Uncertainty
Observed Photovisual Magnitude5.8
Observed Photographic Magnitude6.6
Morgan Keenan (MK) Spectral TypeG8IIb
One-Dimensional Spectral ClassK0
Position Angle45
Year of Observation1973. 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