Astronomy
Constellations - Cygnus - 70 Cyg

 
Identification Data
Common Name
ConstellationCygnus
Star Name70 Cyg
Skymap Number21270072
Henry Draper (HD) Number204403
Harvard Revised (HR) Number8215
SAO Number71358
Durchmusterung (DM) NumberBD+36 4568
Washington Double Stars (WDS) Number

Positional Data
Position and Proper Motion (PPM) Number86599
Right Ascension (RA) J200021h 27m 21.366s
Declination (Dec) J2000+37° 7' 0.474"
Position Uncertainty0.0049s
Proper Motion in RA (J2000)/cos(Dec)+0.00021
Proper Motion in Dec (J2000)+0.002766
Radial Velocity-018.1km s-1
Trigonometric Parallax+0.00184s
Trigonometric Parallax Uncertainty0.00056s
GCI Unit Vector in X (J2000)0.626984
GCI Unit Vector in Y (J2000)-0.492696
GCI Unit Vector in Z (J2000)0.603442
Galactic Longitude83.95°
Galactic Latitude
-9.86°
Observational Data
Observed Visual Magnitude (V)5.30
Derived Visual Magnitude
Derived Visual Magnitude or Observed Visual Magnitude Uncertainty0.002
Observed B Magnitude5.16
Observed B-V Colour-0.144
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 Magnitude5.2
Observed Photographic Magnitude5.0
Morgan Keenan (MK) Spectral TypeB3V
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