Input (grade 13): Discovery and naming Amalthea was discovered on September 9, 1892 by Edward Emerson Barnard using the 36 inch (91 cm) refractor telescope at Lick Observatory.
Output (grade 12): Discovery and naming Amalthea was found on September 9, 1892 by Edward Emerson Barnard using the 36 inch (91 cm) telescope at Lick Observatory.