Speedy Phobos rises in the west, sets in the east, and rises again in just eleven hours, while Deimos, being only just outside synchronous orbit, rises as expected in the east but very slowly.
Phobos yang cepat, terbit di wilayah barat, tenggelam di sebelah timur, dan terbit lagi dalam sebelas hari, sedangkan Deimos, yang hanya berada di luar orbit sinkronis, seperti yang diharapkan terbit di timur tetapi sangat lambat.