NGC 3664 is a magellanic barred spiral galaxy in the constellation of Leo.

It is located about 80 million light years away from Earth, which means, given its apparent dimensions, that NGC 3664 is approximately 50,000 light years across.

[4] The galaxy is characterised by its asymmetric shape, which features a single spiral arm and an off-centre bar.

[7] A HI bridge has been detected to connect the two galaxies in images obtained by the Very Large Array.

[8] The group belongs to the Leo II groups, a large collection of galaxies belonging to the Virgo Supercluster scattered across 30 million light years of space west of the Virgo Cluster.