Exploring Our Solar System

By Sarah Puntoriero

Asaph Hall

Asaph Hall was an American astronomer.On August 17,1877 he discovered one of two small moons of Mars.Later that year he discovered the other,smaller moon.The two were given the names Phobos and Deimos meaning Fear and Terror.They ere given these names after the horses that pulled the chariot of Greek war god Ares.

Asaph Hall also discovered the rotation of Saturn as well as the length of day.He discovered this by noticing a spot on Saturn in December,1876 and continued to observe.He did this with considerable accuracy.