Astronomy
Constellations - Cygnus - 18del Cyg

 
Identification Data
Common Name
ConstellationCygnus
Star Name18del Cyg
Skymap Number19440209
Henry Draper (HD) Number186882
Harvard Revised (HR) Number7528
SAO Number48796
Durchmusterung (DM) NumberBD+44 3234
Washington Double Stars (WDS) Number
19450+4508
Positional Data
Position and Proper Motion (PPM) Number58782
Right Ascension (RA) J200019h 44m 58.477s
Declination (Dec) J2000+45° 7' 50.915"
Position Uncertainty0.0056s
Proper Motion in RA (J2000)/cos(Dec)+0.00408
Proper Motion in Dec (J2000)+0.048467
Radial Velocity-020.1km s-1
Trigonometric Parallax+0.01907s
Trigonometric Parallax Uncertainty0.00045s
GCI Unit Vector in X (J2000)0.311960
GCI Unit Vector in Y (J2000)-0.632770
GCI Unit Vector in Z (J2000)0.708719
Galactic Longitude78.71°
Galactic Latitude
10.24°
Observational Data
Observed Visual Magnitude (V)2.91
Derived Visual Magnitude
Derived Visual Magnitude or Observed Visual Magnitude Uncertainty0.003
Observed B Magnitude2.89
Observed B-V Colour-0.022
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 Magnitude3.0
Observed Photographic Magnitude3.0
Morgan Keenan (MK) Spectral TypeB9.5IV+F1V
One-Dimensional Spectral ClassA0
Position Angle229
Year of Observation1990. 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