The principal star of the northern constellation Bootes with a magnitude of .2 and located 36 light years distant from the Earth.
Artemis (SP-593) (q.v) was renamed Arcturus in accordance with General Order No. 371 of 20 February 1918—probably to avoid confusion with the Army transport Artemis (ex-Bohemia, later Artemis), Id. No. 2187.
Arcturus (SP-593), at anchor circa 1918. (NH 59826)