# Deimos

Deimos (Mars II) is a moon of Mars, discovered by Asaph Hall in 1877. It orbits Mars every 30 hours and shines at about magnitude 12.4.

Mars's smaller, outer moon — easier than Phobos because it strays farther from the planet's glare.

Open AstroPilot to see where Deimos is next to Mars tonight and how easy it is with your telescope. https://astropilot.space/object/deimos