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Phobos is one of the least reflective bodies in the Solar System, with an albedo of 0.071. Surface temperatures range from about −4 °C (25 °F) on the sunlit side to −112 °C (−170 °F) on the shadowed side. The notable surface feature is the large impact crater, Stickney, which takes up a substantial proportion of the moon's surface ...
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.
(An exception is Saturn's moon Helene, which received the Roman numeral XII in 1982, but was not named until 1988.) During this period, the use of Roman numeral designations diminished, and some are very rarely used; Phobos and Deimos are rarely referred to as Mars I and Mars II, and the Moon is never referred to as
Size comparison between Phobos, Deimos and the Moon (right) Deimos is a gray-colored body. Like most bodies of its size, Deimos is highly non-spherical with triaxial dimensions of 16.1 km × 11.8 km × 10.2 km (10.0 mi × 7.3 mi × 6.3 mi), corresponding to a mean diameter of 12.5 km (7.8 mi) which makes it about 57% the size of Phobos. [7]
Fiction set on Phobos (moon) (1 C, 14 P) Fobos-Grunt (3 P) Pages in category "Phobos (moon)" The following 16 pages are in this category, out of 16 total.
The Phobos program (Russian: Фобос, Fobos, Greek: Φόβος) was an uncrewed space mission consisting of two probes launched by the Soviet Union to study Mars and its moons Phobos and Deimos. Phobos 1 was launched on 7 July 1988, and Phobos 2 on 12 July 1988, each aboard a Proton-K rocket. [1] Phobos 1 suffered a terminal failure en route ...
The third and final full moon of the winter is the worm moon, which will be full at 2:56 a.m. EST on Friday, March 14, 2025 in the Northern Hemisphere. Total 'blood moon' lunar eclipse coming in March
Limtoc is an impact crater on the surface of Mars's moon Phobos. [1] The crater, the diameter of which is 2 kilometers, is located within the larger and better-known Stickney crater. [1] Limtoc was officially named by the International Astronomical Union on 29 November 2006, after a character from Jonathan Swift’s 1726 satirical novel ...