[DOC] [TLE] Asaph Hall - Wikipedia [PAR]  [DOC] [TLE] Today in science: A moon for Mars | Space | EarthSky [PAR] Aug 17, 2016 ... American astronomer Asaph Hall discovered Phobos, one of the two Martian 
moons, on this date in 1877. ... Astronomers named the two moons Phobos and 
Deimos  Fear and Terror  for the horses ... Scientists got the first good look at 
Phobos in 1971 and 1972, during Mariner 9's mission to the planet. [DOC] [TLE] Asaph Hall - Wikipedia [PAR] Asaph Hall III (October 15, 1829  November 22, 1907) was an American astronomer who is most famous for having discovered the 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. [DOC] [TLE] Moons of Mars - Wikipedia [PAR] The two moons of Mars are Phobos and Deimos. Both moons were discovered in 
1877 by Asaph Hall and are named after the ... However, the view of most 
astronomers is that Swift was simply employing a .... Since Phobos orbits Mars 
faster than the planet itself rotates, tidal forces are slowly .... American 
Geophysical Union. [DOC] [TLE] NASA - Under the Moons of Mars [PAR] Nov 19, 2007 ... The two tiny moons, Phobos and Deimos, have a storied history. Long before 
their discovery in 1877, Johannes Kepler speculated that since ... In real life, 
however, all searches failed until the American astronomer Asaph Hall 
discovered them ... so close to Mars that they were within the glare of the planet. [DOC] [TLE] Mars' Moons: Facts About Phobos & Deimos - Space.com [PAR] Jun 27, 2016 ... It wasn't until American astronomer Asaph Hall made a thorough study of the 
planet in 1877 that the tiny, closely orbiting bodies were found. [DOC] [TLE] Phobos: Facts About the Doomed Martian Moon - Space.com [PAR] Jun 21, 2016 ... The moon's orbit brings it 6 feet closer to the red planet every century. Facts 
about the Martian moons Phobos and Deimos. ... thought that Mars had no 
moons, American astronomer Asaph Hall performed a ... The next night, August 
12, 1877, he discovered the moon that would later be known as Deimos. [DOC] [TLE] Deimos: Facts About the Smaller Martian Moon - Space.com [PAR] Jun 21, 2016 ... On August 12, 1877, the focused search for Martian moons by American ... Six 
days later, he identified the second Martian moon, Phobos. ... Peering closer to 
Mars than previous astronomers, he found Deimos circling only ... moons by 
American astronomer Asaph Hall resulted in the discovery of Deimos. [DOC] [TLE] Finding Phobos: Discovery of a Martian Moon - Universe Today [PAR] Aug 18, 2011 ... That's when, 134 years ago today, Asaph Hall identified Phobos, the larger of 
Mars' two moons. ... Asaph Hall III (1829  1907) was an astronomer working at 
the US ... D.C. in 1877, and was in charge of their 26-inch telescope, then the ... 
since Hall had already identified the smaller Deimos on August 11. [DOC] [TLE] BBC - Solar System - Asaph Hall (pictures, video, facts & news) [PAR] The American astronomer Asaph Hall discovered the moons of Mars in 1877. 
Watch BBC videos and find out how he spotted Phobos and Deimos. ... He 
determined the orbits of satellites of other planets and of double stars, the rotation 
of... [DOC] [TLE] Asaph Hall | American astronomer | Britannica.com [PAR] American astronomer who discovered the two moons of Mars, Deimos and 
Phobos, ... There he was chiefly concerned with planetary astronomy, the orbits 
of ... companion moon, Phobos, by the American astronomer Asaph Hall in 1877 
and... [DOC] [TLE] ESA - Space for Kids - Our Universe - Phobos and Deimos [PAR] In 1877, the American astronomer Asaph Hall discovered two small moons 
circling the planet Mars. They were named Phobos (Fear) and Deimos (Panic). [DOC] [TLE] The Moons of Mars and Asaph Hall - Rutgers Preparatory School [PAR] Phobos was discovered by an American astronomer named, Asaph Hall. ...

Question: In 1877 American astronomer Asaph Hall discovered this planet's moons, Phobos & Deimos
Answer: Mars