NGC 4490, commonly known as the Cocoon Galaxy^[1], lies in the constellation Canes Venatici at a distance of approximatel 25 million light years^[1].  It is interacting gravitationally with a smaller companion galaxy cataloged NGC 4485^[1].  This pair is included in the ARP catalog of peculiar galaxies as ARP 269^[1,2].  These galaxies are known for being one of the closest interacting galactic systems^[2] to the Milky Way.  The interaction with NGC 4485 has produced a high star formation rate in NGC 4490^[1,2].  The Spitzer Space Telescope has detected a double neucleus in NGC 4490^[2].  One neucleus is visible in the optical and one only visible at infrared and radio wavelengths^[2].  Both galaxies are connected with a stream of material about 25,000 light years in length^[3}.  NGC 4485 has already made its closest approach and is now moveing away from NGC 4490^[3].