Hercules
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Messier Objects in Hercules:
M13,
M92
Constellation index
More on constellation Hercules
[
MAA Original]
More on Hercules (Chris Dolan)
Digital images - Constellation Hercules page (T. Credner/S. Kohle)
[
unframed version]
Jan Wisniewski's Constellation Hercules page
Hercules Photographic Deep Sky Tour by Jack Schmidling
Hartmut Frommert
Christine Kronberg
[contact]