Deimos
CategoryMoon of Mars
SystemSolar System
Diameter12 km
Orbital Period1.26 days
About Deimos
The smaller and outermost moon of Mars. More smooth and regular in shape than Phobos. Escape velocity is only 5.6 meters per second, you could throw a baseball into orbit. Named after the Greek god of terror. Likely a captured asteroid. Surface covered in a fine regolith.