De Vaucouleurs, Gerard; De Vaucouleurs, Antoinette; Corwin, Herold G.; Buta, Ronald J.; Paturel, Georges; Fouque, Pascal (1991). Third Reference Catalogue of Bright Galaxies. Bibcode:1991rc3..book.....D.
Bishop, David (14 May 2017). "Supernova 2017eaw in NGC 6946". Retrieved 29 September 2023. This is our most prolific galaxy with now 10 confirmed supernovae discovered.