1960 OA. Discovered 1960 July 29 by J. Schubart at Sonneberg.
Just as (1000) honors Giuseppe Piazzi, the discoverer of the first minor planet, so (2000) honors William Herschel, (1738–1822), the discoverer of the first telescopic major planet. (M 4237)
Herschel is also honored by craters on Mars and the Moon.