NGC 3535 is an unbarred spiral galaxy in the constellation of Leo. Its velocity with respect to the cosmic microwave background is 7,289±25 km/s, which corresponds to a Hubble distance of 350.7 ± 24.6 Mly (107.51 ± 7.54 Mpc). It was discovered by German-British astronomer William Herschel on 18 April 1784.
According to the SIMBAD database, NGC 3535 is a radio galaxy, i.e. it has giant regions of radio emission extending well beyond its visible structure.
