Astronomy
Constellations - Coma Berenices - 25 Com

 
Identification Data
Common Name
ConstellationComa Berenices
Star Name25 Com
Skymap Number12360145
Henry Draper (HD) Number109742
Harvard Revised (HR) Number4801
SAO Number100176
Durchmusterung (DM) NumberBD+17 2504
Washington Double Stars (WDS) Number

Positional Data
Position and Proper Motion (PPM) Number129193
Right Ascension (RA) J200012h 36m 58.332s
Declination (Dec) J2000+17° 5' 22.329"
Position Uncertainty0.0095s
Proper Motion in RA (J2000)/cos(Dec)-0.00249
Proper Motion in Dec (J2000)-0.017566
Radial Velocity-007.6km s-1
Trigonometric Parallax+0.00629s
Trigonometric Parallax Uncertainty0.00085s
GCI Unit Vector in X (J2000)-0.943436
GCI Unit Vector in Y (J2000)-0.153531
GCI Unit Vector in Z (J2000)0.293866
Galactic Longitude283.81°
Galactic Latitude
79.42°
Observational Data
Observed Visual Magnitude (V)5.68
Derived Visual Magnitude
Derived Visual Magnitude or Observed Visual Magnitude Uncertainty0.003
Observed B Magnitude7.12
Observed B-V Colour+1.436
Observed B Magnitude or (B-V) Magnitude Uncertainty0.006
Observed U Magnitude
Observed U-B Colour
Observed U Magnitude or (U-B) Magnitude Uncertainty
Observed Photovisual Magnitude5.8
Observed Photographic Magnitude6.7
Morgan Keenan (MK) Spectral TypeK5III
One-Dimensional Spectral ClassK2
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