The two moons of Mars are Phobos and Deimos. They are irregular in shape. Both were discovered by Asaph Hall in August 1877 and are named after the Greek mythological twin characters Phobos (panic/fear) and Deimos (terror/dread) who accompanied their father Ares into battle. Ares, god of war, was known to the Romans as Mars.
Moon Full moon seen from Earth Designations Designation Earth I Alternative names Luna Selene (poetic) Cynthia (poetic) Adjectives Lunar Selenian (poetic) Cynthian (poetic) Orbital characteristics Epoch J2000 Perigee 362 600 km (356 400 – 370 400 km) Apogee 405 400 km (404 000 – 406 700 km) Semi-major axis 384 399 km (0.002 57 AU) Eccentricity 0.0549 Orbital period 27.321 661 d (27 d 7 h ...
- 405400 km, (404000–406700 km)
- 362600 km, (356400–370400 km)
- Earth I
- 384399 km (0.00257 AU)
Mars is more likely to be struck by short-period comets, i.e., those that lie within the orbit of Jupiter. In spite of this, there are far fewer craters on Mars compared with the Moon, because the atmosphere of Mars provides protection against small meteors and surface modifying processes have erased some craters.
Phobos / ˈfoʊbɒs / (systematic designation: Mars I) is the innermost and larger of the two natural satellites of Mars, the other being Deimos. Both moons were discovered in 1877 by American astronomer Asaph Hall.
Deimos, like Mars' other moon, Phobos, has spectra, albedos, and densities similar to those of a C-or D-type asteroid .Like most bodies of its size, Deimos is highly non-spherical with triaxial dimensions of 15 × 12.2 × 11 km, making it 56% of the size of Phobos.
Kjo faqe është redaktuar për herë te fundit më 29 mars 2014, në orën 08:54.
Titan is the largest moon of Saturn and the second-largest natural satellite in the Solar System.It is the only moon known to have a dense atmosphere, and the only known body in space, other than Earth, where clear evidence of stable bodies of surface liquid has been found.
29 mars är den 88:e dagen på året i den gregorianska kalendern (89:e under skottår).Det återstår 277 dagar av året.
NASA has also discussed plans to launch Mars missions from the Moon to reduce traveling costs. Mars Society Germany – European Mars Mission (EMM) (2005) The Mars Society Germany proposed a crewed Mars mission using several launches of an improved heavy-lift version of the Ariane 5. Roughly 5 launches would be required to send a crew of 5 on a ...
The Moon Mineralogy Mapper (M 3), an imaging spectrometer, was one of the 11 instruments on board Chandrayaan-1, whose mission came to a premature end on 29 August 2009. M 3 was aimed at providing the first mineral map of the entire lunar surface. Lunar scientists had discussed the possibility of water repositories for decades.