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Astronomy
Constellations - Coma Berenices - 23 Com

 
Identification Data
Common Name
ConstellationComa Berenices
Star Name23 Com
Skymap Number12340118
Henry Draper (HD) Number109485
Harvard Revised (HR) Number4789
SAO Number82390
Durchmusterung (DM) NumberBD+23 2475
Washington Double Stars (WDS) Number
12349+2238
Positional Data
Position and Proper Motion (PPM) Number102005
Right Ascension (RA) J200012h 34m 51.080s
Declination (Dec) J2000+22° 37' 45.330"
Position Uncertainty0.0178s
Proper Motion in RA (J2000)/cos(Dec)-0.00421
Proper Motion in Dec (J2000)+0.031767
Radial Velocity-016.0km s-1
Trigonometric Parallax+0.00894s
Trigonometric Parallax Uncertainty0.00092s
GCI Unit Vector in X (J2000)-0.912362
GCI Unit Vector in Y (J2000)-0.139820
GCI Unit Vector in Z (J2000)0.384767
Galactic Longitude262.23°
Galactic Latitude
84.14°
Observational Data
Observed Visual Magnitude (V)4.79
Derived Visual Magnitude
Derived Visual Magnitude or Observed Visual Magnitude Uncertainty0.002
Observed B Magnitude4.79
Observed B-V Colour+0.003
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 Magnitude4.8
Observed Photographic Magnitude
Morgan Keenan (MK) Spectral TypeA0IV
One-Dimensional Spectral ClassA0
Position Angle357
Year of Observation1993. 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))

 
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Page compiled: Sun Sep 02 13:15:38 GMT+01:00 2001
 
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