Geological Chronicle
Promontorium Archerusia is a headland situated on the near side of the Moon at coordinates 16.8043°N, 21.9434°E. Spanning a diameter of 11.21 kilometers, the promontory forms a boundary separating Mare Serenitatis from Mare Tranquillitatis.
The feature was named by Johannes Hevelius after Cape Acherusia, a headland on the Black Sea near Heraclea in ancient Bithynia, located in present-day Karadeniz Ereğli, Turkey. The official lunar designation preserves a misspelling, rendering Acherusia as Archerusia