“Deimos”的概念、定义、翻译、参考文献-科学参考

Deimos

Astronomy

The outer satellite of Mars, distance 23 460 km from the planet’s centre, orbital period 1.262 days. Deimos is irregular in shape, 16 × 12 × 10 km across its three axes. It spins on its shortest axis in the same time that it takes for one orbit, and so keeps the same face towards Mars. Deimos was discovered in 1877 by A. Hall. Its surface is covered with impact craters, but it is smoother than Phobos as many of its craters appear to have been infilled. Deimos may be a captured C-type asteroid.

Space Exploration

One of the two moons of the planet Mars. It is irregularly shaped, 15 × 12 × 11 km, orbits at a height of 24 000 km every 1.26 days, and is not as heavily cratered as Mars's other moon, Phobos. Deimos was discovered in 1877 by US astronomer Asaph Hall, and is thought to be an asteroid captured by Mars' gravity.
NASA's Viking 2 probe visited Deimos in 1977, flying within 29 km of the Moon's surface and taking detailed photographs of its pitted and boulder-strewn landscape. Since then, the Soviet Phobos 2 mission, NASA’s Mars Global Surveyor, and the European Mars Express have all provided more clues about the two curious moons, hinting that both might be asteroids.

Geology and Earth Sciences

1. See mars.
2. An international collaborative microsatellite mission to provide 600-km-swathe, multispectral, high-resolution surface imagery. The Deimos-1 and UK-DMC-2 satellites were launched on 29 July 2009, from Baikonur, Kazakhstan. Deimos-2, a follow-on mission, was launched on 19 June 2014, from the Yasny Cosmodrome, Russia.

单词	Deimos
释义	Deimos Astronomy The outer satellite of Mars, distance 23 460 km from the planet’s centre, orbital period 1.262 days. Deimos is irregular in shape, 16 × 12 × 10 km across its three axes. It spins on its shortest axis in the same time that it takes for one orbit, and so keeps the same face towards Mars. Deimos was discovered in 1877 by A. Hall. Its surface is covered with impact craters, but it is smoother than Phobos as many of its craters appear to have been infilled. Deimos may be a captured C-type asteroid. Space Exploration One of the two moons of the planet Mars. It is irregularly shaped, 15 × 12 × 11 km, orbits at a height of 24 000 km every 1.26 days, and is not as heavily cratered as Mars's other moon, Phobos. Deimos was discovered in 1877 by US astronomer Asaph Hall, and is thought to be an asteroid captured by Mars' gravity. NASA's Viking 2 probe visited Deimos in 1977, flying within 29 km of the Moon's surface and taking detailed photographs of its pitted and boulder-strewn landscape. Since then, the Soviet Phobos 2 mission, NASA’s Mars Global Surveyor, and the European Mars Express have all provided more clues about the two curious moons, hinting that both might be asteroids. Geology and Earth Sciences 1. See mars. 2. An international collaborative microsatellite mission to provide 600-km-swathe, multispectral, high-resolution surface imagery. The Deimos-1 and UK-DMC-2 satellites were launched on 29 July 2009, from Baikonur, Kazakhstan. Deimos-2, a follow-on mission, was launched on 19 June 2014, from the Yasny Cosmodrome, Russia.
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