NGC 3370 (also known as UGC 5887, nicknamed Silverado Galaxy) is a spiral galaxy about 98 million light-years away in the constellation Leo. It is similar in size to our own Milky Way. NGC 3370 exhibits intricate spiral arm structure that is sprinkled with hot areas where new stars are forming. NGC 3370's center has well defined dust lanes and an unusually ill-defined nucleus. This galaxy contains a combination of young stars in the bluer regions and older stars in the yellowish core. The mass of NGC 3370 is estimated to be about the same as our own Milky Way at around 1011 solar masses.