Astronomy
Constellations - Cygnus - 42 Cyg

 
Identification Data
Common Name
ConstellationCygnus
Star Name42 Cyg
Skymap Number20290083
Henry Draper (HD) Number195324
Harvard Revised (HR) Number7835
SAO Number70096
Durchmusterung (DM) NumberBD+35 4141
Washington Double Stars (WDS) Number

Positional Data
Position and Proper Motion (PPM) Number85042
Right Ascension (RA) J200020h 29m 20.390s
Declination (Dec) J2000+36° 27' 17.024"
Position Uncertainty0.0050s
Proper Motion in RA (J2000)/cos(Dec)+0.00021
Proper Motion in Dec (J2000)-0.001666
Radial Velocity-018.0km s-1
Trigonometric Parallax+0.00193s
Trigonometric Parallax Uncertainty0.00052s
GCI Unit Vector in X (J2000)0.487803
GCI Unit Vector in Y (J2000)-0.639523
GCI Unit Vector in Z (J2000)0.594187
Galactic Longitude75.86°
Galactic Latitude
-1.47°
Observational Data
Observed Visual Magnitude (V)5.91
Derived Visual Magnitude
Derived Visual Magnitude or Observed Visual Magnitude Uncertainty0.003
Observed B Magnitude6.31
Observed B-V Colour+0.404
Observed B Magnitude or (B-V) Magnitude Uncertainty0.004
Observed U Magnitude
Observed U-B Colour
Observed U Magnitude or (U-B) Magnitude Uncertainty
Observed Photovisual Magnitude5.9
Observed Photographic Magnitude
Morgan Keenan (MK) Spectral TypeA1Ib
One-Dimensional Spectral ClassA0
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