MARS - MARS MOONS

DEIMOS:
       Deimos is one of Mars' two moons. It was named after an attendant of the Roman God, 
Mars. Deimos is a dark satellite that is composed of black, carbonaceous chondrite. Some 
scientists believe that these moons are not actually satellites, but asteroids that have 
been captured instead. Deimos and Phobus, the second moon, have alot of craters. However, 
Deimos is smoother and it's craters are partially filled. Here are some facts about Mars' 
moon, Deimos. Deimos was discovered by Asaph Hall in 1877. The mass of Deimos is 1.8e15 kg. 
The radius is 7.5*6.1*5.5 km. The rotational period of this moon is 1.26244 days and the 
magnitude is 12.4 Vo.

PHOBOS:
       Phobos is one of the two moons of Mars. It was named after an attendant of the Roman 
God, Mars. Phobos is a dark moon that is composed of a black, carbonaceous chondrite. Some 
scientists believe that Phobos is actually a captured asteroid instead of a moon. This moon 
was discovered by Asaph Hall in 1877. Its mass is 1.08e16 kg. Phobos is 9,380 km from Mars.
Its rotational period is 0.3191 days and it has a magnitude of 11.3 Vo.