NGC 4617
NGC 4617 is a spiral galaxy in the constellation of Canes Venatici. Its velocity with respect to the cosmic microwave background is, which corresponds to a Hubble distance of. However, four non-redshift measurements give a closer mean distance of. It was discovered by German-British astronomer William Herschel on 9 March 1788.
NGC 4617 is an active galaxy nucleus candidate, i.e. it has a compact region at the center of a galaxy that emits a significant amount of energy across the electromagnetic spectrum, with characteristics indicating that this luminosity is not produced by the stars.