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Hercules
Map of Hercules
Genitive
  Herculis
Abbreviation
  Her
Right Ascension
  15h47 to 18h56
Declination
  +3.9° to +51.3°
Area (sq deg)
  1,225
Brightest Star
  Ras Algethi and Rutilicus
  (variable stars with almost identical
  maximum magnitudes)
Optimum Visibility
  June
A large constellation of the northern sky, particularly noted for the Globular Cluster M13.
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  • Aquila
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  • Ophiuchus
  • Sagitta
  • Serpens