NGC 1721
NGC 1721 is a lenticular galaxy located in the constellation Eridanus. It was discovered on the 10th of Nov 1885 by Edward Emerson Barnard. This galaxy is a member of the NGC 1723 Group—consisting of NGC 1723 and a close triplet of NGC 1721, NGC 1725 and NGC 1728.
NGC 1721 is a Dreyer Object, meaning that it was included in the original New General Catalogue by JLE Dreyer.