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The inner part of the ring formed a large moon. Gravitational interactions between this moon and the outer ring formed Phobos and Deimos. Later, the large moon crashed into Mars, but the two small moons remained in orbit. This theory agrees with the fine-grained surface of the moons and their high porosity.
Including these large moons, 24 of Saturn's moons are regular, and traditionally named after Titans or other figures associated with the mythological Saturn. The remaining 122 are irregular, and classified by their orbital characteristics into Inuit , Norse , and Gallic groups, and their names are chosen from the corresponding mythologies the ...
Impact craters on Mars's moons (4 P) P. Phobos (moon) (2 C, 16 P, 1 F) Pages in category "Moons of Mars" The following 5 pages are in this category, out of 5 total.
Mars’s moons don’t get much credit. But they’re small, lifeless, and weird little things. Here’s everything you should know about them.
It takes about 687 days for Mars to orbit around the Sun. Mars has all 4 seasons, but each season is twice as long Earth's. Mars has virtually no atmosphere. It is 96% carbon dioxide, 1% Argon and ...
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Phobos (/ ˈ f oʊ b ə s /; systematic designation: Mars I) is the innermost and larger of the two natural satellites of Mars, the other being Deimos. The two moons were discovered in 1877 by American astronomer Asaph Hall. Phobos is named after the Greek god of fear and panic, who is the son of Ares (Mars) and twin brother of Deimos.
In August 1877, the American astronomer Asaph Hall discovered the two moons of Mars using a 660 mm (26 in) telescope at the U.S. Naval Observatory. [55] The names of the two satellites, Phobos and Deimos, were chosen by Hall based upon a suggestion by Henry Madan, a science instructor at Eton College in England. [56]