The asteroid named Pandora is 55 Pandora, discovered in 1858. It is a main-belt asteroid, and its number indicates that it was the 55th minor planet to receive a permanent numbered designation in the historical sequence of asteroid discoveries.
George Mary Searle discovered 55 Pandora on 10 September 1858 from the Dudley Observatory in Albany, New York. The asteroid was named after Pandora from Greek mythology, continuing the long astronomical practice of using figures from classical stories for minor planets.
55 Pandora is unrelated to Pandora, one of Saturn’s moons, which was discovered much later in 1980. The asteroid and the moon share a mythological name but are different astronomical objects with different discovery histories and locations.