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8 gru 2017 · Both are tiny — the larger, Phobos, is only 14 miles across (22 kilometers), while the smaller, Deimos, is only 8 miles (13 km), making them some of the smallest moons in the solar system. Both...
Compared to the Earth's Moon, the moons Phobos and Deimos are small. Phobos has a diameter of 22.2 km (13.8 mi) and a mass of 1.08 × 10 16 kg, while Deimos measures 12.6 km (7.8 mi) across, with a mass of 1.5 × 10 15 kg.
Summary. Phobos is the larger of the two moons of Mars, with a mean diameter 2 of about 22 km and an orbital radius of 9,376 km. Phobos orbits faster than Mars rotates, so it rises in the west and sets in the east as viewed from the planet’s surface. The low orbit has made it a target for robotic spacecraft orbiting Mars.
Phobos is the larger of Mars' two moons and is 17 x 14 x 11 miles (27 by 22 by 18 kilometers) in diameter. It orbits Mars three times a day, and is so close to the planet's surface that in some locations on Mars it cannot always be seen.
Deimos has two large impact craters called Swift and Voltaire. Deimos has far fewer impact craters than its brother Phobos. The two biggest craters on the moon are Swift and Voltaire, both around 3 km (1.9 mi) across.
29 mar 2024 · Phobos and Deimos are very different in terms of size and appearance. Phobos is the larger of the two moons, with a diameter of about 22.4 kilometers, while Deimos is much smaller, with a diameter of only about 12.4 kilometers.
1 lut 2018 · Phobos orbits Mars at a distance of only 5,989 km (3,721 miles), which is below the synchronous orbit radius. In practice, this means that Phobos travels around Mars at a speed that is higher than Mars’ equatorial rotation speed, which produces some interesting effects.
