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Astronomy
Constellations - Coma Berenices - 17 Com

 
Identification Data
Common Name
ConstellationComa Berenices
Star Name17 Com
Skymap Number12280122
Henry Draper (HD) Number108662
Harvard Revised (HR) Number4752
SAO Number82330
Durchmusterung (DM) NumberBD+26 2354
Washington Double Stars (WDS) Number
12289+2555
Positional Data
Position and Proper Motion (PPM) Number101928
Right Ascension (RA) J200012h 28m 54.704s
Declination (Dec) J2000+25° 54' 46.266"
Position Uncertainty0.0092s
Proper Motion in RA (J2000)/cos(Dec)-0.00150
Proper Motion in Dec (J2000)-0.015066
Radial Velocity-002.4km s-1
Trigonometric Parallax+0.01206s
Trigonometric Parallax Uncertainty0.00084s
GCI Unit Vector in X (J2000)-0.892312
GCI Unit Vector in Y (J2000)-0.113167
GCI Unit Vector in Z (J2000)0.437004
Galactic Longitude225.29°
Galactic Latitude
84.82°
Observational Data
Observed Visual Magnitude (V)5.25
Derived Visual Magnitude
Derived Visual Magnitude or Observed Visual Magnitude Uncertainty0.004
Observed B Magnitude5.23
Observed B-V Colour-0.019
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 Magnitude5.4
Observed Photographic Magnitude5.4
Morgan Keenan (MK) Spectral TypeA1IVp
One-Dimensional Spectral ClassA0
Position Angle251
Year of Observation1968. 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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