Astronomy
Constellations - Cygnus - 37gam Cyg (Sadr)

 
Identification Data
Common NameSadr
ConstellationCygnus
Star Name37gam Cyg
Skymap Number20220059
Henry Draper (HD) Number194093
Harvard Revised (HR) Number7796
SAO Number49528
Durchmusterung (DM) NumberBD+39 4159
Washington Double Stars (WDS) Number
20222+4015
Positional Data
Position and Proper Motion (PPM) Number59799
Right Ascension (RA) J200020h 22m 13.701s
Declination (Dec) J2000+40° 15' 24.045"
Position Uncertainty0.0053s
Proper Motion in RA (J2000)/cos(Dec)+0.00021
Proper Motion in Dec (J2000)-0.000966
Radial Velocity-007.5km s-1
Trigonometric Parallax+0.00214s
Trigonometric Parallax Uncertainty0.00051s
GCI Unit Vector in X (J2000)0.443786
GCI Unit Vector in Y (J2000)-0.620856
GCI Unit Vector in Z (J2000)0.646213
Galactic Longitude78.15°
Galactic Latitude
1.87°
Observational Data
Observed Visual Magnitude (V)2.23
Derived Visual Magnitude
Derived Visual Magnitude or Observed Visual Magnitude Uncertainty0.003
Observed B Magnitude2.92
Observed B-V Colour+0.690
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 Magnitude2.3
Observed Photographic Magnitude
Morgan Keenan (MK) Spectral TypeF8Ib
One-Dimensional Spectral ClassF8
Position Angle196
Year of Observation1923. 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