Astronomy
Constellations - Coma Berenices - 12 Com

 
Identification Data
Common Name
ConstellationComa Berenices
Star Name12 Com
Skymap Number12220080
Henry Draper (HD) Number107700
Harvard Revised (HR) Number4707
SAO Number82273
Durchmusterung (DM) NumberBD+26 2337
Washington Double Stars (WDS) Number
12225+2551
Positional Data
Position and Proper Motion (PPM) Number101845
Right Ascension (RA) J200012h 22m 30.312s
Declination (Dec) J2000+25° 50' 46.177"
Position Uncertainty0.0088s
Proper Motion in RA (J2000)/cos(Dec)-0.00080
Proper Motion in Dec (J2000)-0.008966
Radial Velocity+000.5km s-1
Trigonometric Parallax+0.01193s
Trigonometric Parallax Uncertainty0.00072s
GCI Unit Vector in X (J2000)-0.895632
GCI Unit Vector in Y (J2000)-0.088233
GCI Unit Vector in Z (J2000)0.435956
Galactic Longitude222.56°
Galactic Latitude
83.40°
Observational Data
Observed Visual Magnitude (V)4.80
Derived Visual Magnitude
Derived Visual Magnitude or Observed Visual Magnitude Uncertainty0.003
Observed B Magnitude5.30
Observed B-V Colour+0.503
Observed B Magnitude or (B-V) Magnitude Uncertainty0.003
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 TypeG0III-IV+A3V
One-Dimensional Spectral ClassF5
Position Angle167
Year of Observation1972. 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