What is Deimos science?
Overview. Deimos is the smaller of Mars’ two moons. Like Phobos, Deimos is a small and lumpy, heavily cratered object. Its craters are generally smaller than 1.6 miles (2.5 kilometers) in diameter, however, and it lacks the grooves and ridges seen on Phobos.
What does the word Deimos mean?
terror
[ dahy-mos ] SHOW IPA. / ˈdaɪ mɒs / PHONETIC RESPELLING. noun. an ancient Greek personification of terror, a son of Ares and Aphrodite.
What is Deimos in the solar system?
Deimos /ˈdaɪmɒs/ (systematic designation: Mars II) is the smaller and outermost of the two natural satellites of Mars, the other being Phobos. Deimos has a mean radius of 6.2 km (3.9 mi) and takes 30.3 hours to orbit Mars.
What is Deimos named after?
The two moons of Mars are Phobos and Deimos. They are irregular in shape. Both were discovered by American astronomer Asaph Hall in August 1877 and are named after the Greek mythological twin characters Phobos (fear) and Deimos (terror and dread) who accompanied their father Ares into battle.
What is Deimos made of?
Deimos is composed of rock rich in carbonaceous material, much like C-type asteroids and carbonaceous chondrite meteorites. It is cratered, but the surface is noticeably smoother than that of Phobos, caused by the partial filling of craters with regolith.
What is Earth’s moon called?
Moon
Earth/Moons
What is the meaning of Deimos and Phobos?
Phobos and Deimos (moons of Mars) Mars has two small moons: Phobos and Deimos. Phobos (fear) and Deimos (panic) were named after the horses that pulled the chariot of the Greek war god Ares, the counterpart to the Roman war god Mars. Both Phobos and Deimos were discovered in 1877 by American astronomer Asaph Hall.
What is the gravity on Deimos?
0.003 m/s²
Deimos/Gravity
Size, Mass and Orbit: As a result, Deimos’ surface gravity is very weak, just 0.003 m/s – or 0.000306 g. Deimos’ orbit is nearly circular, ranging from 23455.5 km at periapsis (closest) to 23470.9 km at apoapsis (farthest) – which works out to an average distance (semi-major axis) of 23,463.2 km.
What is Deimos made out of?
How was Deimos formed?
Another possible origin for the moons is that dust and rock could have accreted, or drawn together, while in orbit around Mars. A third possibility includes a collision, much like the one that formed Earth’s moon, with most of the large debris being shed from the planet’s orbit, leaving behind only Deimos and Phobos.
What’s the name of the sun?
Sol
We English speakers always just call it the sun. You sometimes hear English-speakers use the name Sol for our sun. If you ask in a public forum like this one, you’ll find many who swear the sun’s proper name is Sol. But, in English, in modern times, Sol is more a poetic name than an official one.
Why is the sun called the sun?
The word sun comes from the Old English word sunne, which itself comes from the older Proto-Germanic language’s word sunnōn. In ancient times the Sun was widely seen as a god, and the name for Sun was the name of that god. Ancient Greeks called the Sun Helios, and this word is still used to describe the Sun today.
What does the name Deimus mean?
Deimos / ˈdaɪmɒs / ( Ancient Greek: Δεῖμος, pronounced [dêːmos], meaning “dread”) is the personal god of dread and terror in Greek mythology. He was a son of Ares and Aphrodite, and the twin brother of Phobos.
What is the meaning of the name Deimos?
The meaning of Deimos is “fear, terror”. Deimos is generally used as a boy’s name. It consists of 6 letters and 2 syllables and is pronounced Dei-mos.
Are Phobos and Deimos similar?
Phobos and Deimos both have much in common with carbonaceous C-type asteroids, with spectra, albedo, and density very similar to those of C- or D-type asteroids. Based on their similarity, one hypothesis is that both moons may be captured main-belt asteroids.
