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NGC 6946 (Arp 29) is a face-on SAB(rs)cd galaxy in the constellation Cygnus. This classification refers to the presence of a small core with multiple well-defined arms (cd), with a poorly-developed bar across the middle (AB) and an inner confused ring (rs). Nearly twenty million light years from Earth, it is over seventy thousand light years across. PDF version: https://www.ing.iac.es/PR/dissemination/edgeoff.pdf
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