NGC 6816 is a barred spiral galaxy located in the constellation Aquila. It is approximately 90 million light-years away from Earth and is part of the Hubble Space Telescope catalog of galaxies. This galaxy is notable for its bright core and well-defined spiral arms, which are characteristic features of barred spiral galaxies. NGC 6816 is also classified as a Seyfert galaxy, indicating that it has an active nucleus that emits significant radiation, often due to the presence of a supermassive black hole at its center.