 It was discovered on 4 June 1918, by German astronomer Max Wolf at the Heidelberg-Königstuhl State Observatory.The X-type asteroid has a short rotation period of 4.7 hours and measures approximately in diameter.It was likely named after a character in Wagner's "Der Ring des Nibelungen", "Erda", who is the goddess of wisdom, fate and Earth, borrowed from the Norse sagas, and referring to both Urðr and Jörð in Norse mythology.