How did Asaph Hall discover Phobos and Deimos?
Asked in Planet Mars
Who discovered the two moons of Mars and Phobos Deimos?
Who discovered the two moons of mars Phobos and Deimos?
Asked in Planet Mars, Scientists
Who discovered the moons of Mars?
Asaph Hall, in 1877. Mars has two tiny natural moons, Phobos and Deimos, which orbit very close to the planet and are thought to be captured asteroids. Both satellites were discovered in 1877 by Asaph Hall, and are named after the characters Phobos (panic/fear) and Deimos (terror/dread) who, in Greek mythology, accompanied their father Ares (Mars) , god of war, into battle.
Asked in Planet Mars
What are the descriptions for Mars' moons Phobos and Deimos also when were they discovered?
Asked in Volcanoes, Planetary Science, Planet Mars
What Mars's mons?
Mar's moons are Phobos and Deimos. They were discovered in 1877 by Asaph Hall. The names came from Greek mythology, Phobos being fear and Deimos terror. Phobos is the larger of the two. The moons are irregularly shaped, and are supposedly captured asteroids. In about 50 million years Phobos will either crash into Mars or break up into a ring structure around the planet.
Asked in Planet Mars
What is the name of the scientist that discovered Mars' moons?
Mars's two moons, Phobos and Deimos, we're both discovered in August 1877 by Asaph Hall. Asaph Hall III (Oct. 15, 1828-Nov. 22, 1907) was an American astronomer best known for his discovery of Phobos and Deimos, the two captured moons of Mars. Aside from this, Hall also discovered the orbits of other planet's satellites and of double stars, the rotational period of Saturn, and the mass of Mars.
Asked in Ancient Greece
Information on Phobos and Deimos satellites of Mars?
Deimos and Phobos are the only two known natural satellites of the planet Mars. They are named after the ancient Greek gods (Phobos is the god of panic fear, flight and battlefield rout; and Demos is the god of fear, dread and terror). Phobos is the larger (26.8 × 22.4 × 18.4 km) of the two moons and orbits closer (9,377.2 km) to Mars. It is speculated that Phobos may have vast caverns within the moon. Deimos is (15 × 12.2 × 10.4 km) and orbits at a mean distance of (23,460 km) from Mars. Both bodies are thought to be captured asteroids or comets and are too small to be round. Deimos was discovered by astronomer Asaph Hall on August 12, 1877. Phobos was discovered by astronomer Asaph Hall on August 18, 1877. Faint dust rings produced by Phobos and Deimos have long been predicted but attempts to observe these rings have, to date, failed. Thus as far as we know to date Mars has no rings.
Asked in Astronomy, Planetary Science, Planet Mars
Who Discover Phobos and Deimos?
from wikipedia.org: Deimos was discovered by Asaph Hall, Sr. on August 12, 1877 at about 07:48 UTC (given in contemporary sources as "August 11 14:40"Washington mean time using the old astronomical convention of beginning a day at noon, so 12 hours must be added to get the actual local mean time). Hall also discovered Phobos at the same time, after deliberately searching for Martian moons. The names, originally spelled Phobus and Deimus, respectively, were suggested by Henry Madan (1838-1901), Science Master of Eton, from Book XV of the Iliad, where Ares (the Roman god Mars) summons Dread (Deimos) and Fear (Phobos).
Asked in Planetary Science, Planet Mars
When where Mars moons discovered?
Asked in Science, Planetary Science, Planet Mars
What are facts about the moons of Mars?
Deimos is the smaller of Mars' two moons. It was named after an attendant of the Roman God, Mars. It is also Latin for "panic." 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. Scientists believe this because Deimos and Phobos are not completely round. In fact, they are not round at all! The dimensions of Deimos is 7.5*6.1*5.5 km. Deimos and Phobos, the second moon, have a lot 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 using a telescope at the United States Naval Observatory in Washington, D.C. (also the residence of the vice president of the United States!) The mass of Deimos is 1.8e15 kg. The rotational period of this moon is 1.26244 days, or about 30 hours, and the magnitude is 12.4 Vo. top... PHOBOS: Phobos is the larger of the two moons. It was named after an attendant of the Roman God, Mars. It is also Latin for "fear." Phobos is a dark moon that is composed of a black, carbonaceous chondrite. Like Deimos, 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, but is slowly moving closer to Mars. Scientists predict that in another 100 million years, Phobus will actually crash into Mars. Phobos is, at its longest, 14 miles (22 kilometers) across. Around three feet (1 meter) of it is a layer of dust built up over millions of years of meteorite collisions. Its rotational period is 0.3191 days, or around 7 hours, and it has a magnitude of 11.3 Vo. mars have two moons
Asked in Planet Mars
Which is bigger Phobos or Deimos?
Phobos, Mars' closest satellite, come from the Greek word meaning 'fear', whilst Deimos means 'panic', both following on from the Mars/War theme. Orbiting at a meagre 6000km from the surface of Mars, Phobos is the closest moon to its' parent planet in the Solar System (at least that we know of), whilst Deimos is the smallest known solar system satellite. Phobos and Deimos are both believed to be captured asteroids, due to their irregular shape and small size (Phobos having a 22.2km wide diameter, whilst Deimos is just 12.6km wide!). Both moons are, however, heavily cratered and are believed to be made up of rock and ice. Like our moon they have a coating of dust on their surfaces. Phobos' orbit is such that it rises in the west and sets in the east, often more than once in one day. However, I'm afraid there isn't realy much future left for Phobos as an independent moon of Mars. This is because in little over 50 million years it is destined to crash into Mars (with a thud) due to the planet's tidal forces lowering its orbit (presently at about 1.8cm/year). Nevertheless, it (and Deimos) have been seen by many spacecraft since it was discovered by Asaph Hall in 1877, such as the Mariner 9, Viking 1, Phobos and Phobos 2, the last of which even detected an outgassing coming from Phobos.