Asaph Hall
Asaph Hall was born on October 15, 1829. See ranking, bio blurb, and everyone else born that day.
About Asaph Hall
Asaph Hall III (October 15, 1829 – November 22, 1907) was an American astronomer who is best known for having discovered the two moons of Mars, Deimos and Phobos, in 1877. He determined the orbits of satellites of other planets and of double stars, the rotation of Saturn, and the mass of Mars.