M13, The Great Hercules Cluster - John W. O'Neal, II (kohamher1)

M13 - Kurt Byrnes (kdb)

M13 core - Pepe Cuellar Cuevas (pepecuellar)

Omega Centauri (NGC 5139) - John W Burt (darthjohnnyb)

M-13 Hercules Globular Cluster - Greg Pope (bigtroutphoto)

Hercules Cluster - M13 - Garrett Grainger (ggrainger)

NGC 5139 - Omega Centauri - David Carrick (dccarrick)

Omega Centauri (NGC5139) - Clinton Wood (chunkywood)

M13 - Hercules Globular Cluster - Craig Temple (templec2002)

M13 - The Great Globular in Hercules - Derek Java (iween)

NGC5139-Omega Centauri - Jose CarlosDiniz (Diniz)

M13_Trapani - David Trapani (dtrapani)

M13 - Hercules Globular Cluster - Tom Sprecher (tsprecher)

M13 + NGC6205 - Yuriy Toropin (ytoropin)

Omega Centauri 25 sec canon 20d iso800 hyperstar lens. - David Thomasson (Thomo)

M013 Globular Cluster in Hercules - Dave Gulyas (dgulyas)

M13 - john dearman (johnd)

M13 Hercules Cluster - Patrick Forster (pforster)