Astronomy
Constellations - Coma Berenices - 7 Com

 
Identification Data
Common Name
ConstellationComa Berenices
Star Name7 Com
Skymap Number12160051
Henry Draper (HD) Number106714
Harvard Revised (HR) Number4667
SAO Number82211
Durchmusterung (DM) NumberBD+24 2443
Washington Double Stars (WDS) Number

Positional Data
Position and Proper Motion (PPM) Number101766
Right Ascension (RA) J200012h 16m 20.538s
Declination (Dec) J2000+23° 56' 43.472"
Position Uncertainty0.0094s
Proper Motion in RA (J2000)/cos(Dec)-0.00196
Proper Motion in Dec (J2000)-0.005966
Radial Velocity-026.9km s-1
Trigonometric Parallax+0.01312s
Trigonometric Parallax Uncertainty0.00088s
GCI Unit Vector in X (J2000)-0.911610
GCI Unit Vector in Y (J2000)-0.065114
GCI Unit Vector in Z (J2000)0.405866
Galactic Longitude232.95°
Galactic Latitude
81.47°
Observational Data
Observed Visual Magnitude (V)4.93
Derived Visual Magnitude
Derived Visual Magnitude or Observed Visual Magnitude Uncertainty0.003
Observed B Magnitude5.88
Observed B-V Colour+0.948
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 Magnitude5.1
Observed Photographic Magnitude
Morgan Keenan (MK) Spectral TypeG8IIIFe-0.5
One-Dimensional Spectral ClassK0
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 13:15:38 GMT+01:00 2001