Astronomy
Constellations - Cancer - 39 Cnc

 
Identification Data
Common Name
ConstellationCancer
Star Name39 Cnc
Skymap Number8400025
Henry Draper (HD) Number73665
Harvard Revised (HR) Number3427
SAO Number80333
Durchmusterung (DM) NumberBD+20 2158
Washington Double Stars (WDS) Number
08401+2000
Positional Data
Position and Proper Motion (PPM) Number98927
Right Ascension (RA) J20008h 40m 6.418s
Declination (Dec) J2000+20° 0' 28.036"
Position Uncertainty0.0111s
Proper Motion in RA (J2000)/cos(Dec)-0.00248
Proper Motion in Dec (J2000)-0.011866
Radial Velocity+035.7km s-1
Trigonometric Parallax+0.00555s
Trigonometric Parallax Uncertainty0.00089s
GCI Unit Vector in X (J2000)-0.604329
GCI Unit Vector in Y (J2000)0.719529
GCI Unit Vector in Z (J2000)0.342148
Galactic Longitude205.52°
Galactic Latitude
32.54°
Observational Data
Observed Visual Magnitude (V)6.37
Derived Visual Magnitude
Derived Visual Magnitude or Observed Visual Magnitude Uncertainty0.009
Observed B Magnitude7.35
Observed B-V Colour+0.982
Observed B Magnitude or (B-V) Magnitude Uncertainty0.012
Observed U Magnitude
Observed U-B Colour
Observed U Magnitude or (U-B) Magnitude Uncertainty
Observed Photovisual Magnitude6.5
Observed Photographic Magnitude7.5
Morgan Keenan (MK) Spectral TypeG8III
One-Dimensional Spectral ClassK0
Position Angle151
Year of Observation1984. 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 13:15:37 GMT+01:00 2001