The surface geology and geomorphology of Phobos ScienceDirect
Character and origin of Phobos grooves ScienceDirect
Phobos Astronomy Wiki Fandom
Phobos Facts About the Doomed Martian Moon Space
Phobos Orbit Surface Features Britannica
Phobos Moon Facts Space Facts
Phobos pronounced FOH bus is the largest of the two moons which orbit the planet Mars It is also closer to it s primary than any other satellite in the solar system Phobos travels only 3 700 miles 6 000 km above the surface of the red planet by comparison the Moon is 384 400 km above Earth
The Martian moon Phobos orbits only a few thousand miles above the Red Planet 39 s surface Its proximity to its planet is one of the reasons astronomers were unable to see the satellite
Phobos Orbit Surface Features Britannica
Phobos oldest surface formed about 4 3 3 5 Ga Case A Case B ago Crater Stickney is ancient and about 4 2 2 6 Ga Case A Case B old Grooves on Phobos are ancient but developed probably at various times
EVOLUTION OF PHOBOS ORBIT TIDAL FORCES DYNAMICAL
Stickney is the largest crater and one of the most prominent features on Phobos surface which is centered on the equator and extends from longitude 25 W to 70 W This means tidal forces grow stronger from west to east across Stickney
Phobos orbits 6 000 km 3 700 mi from the Martian surface closer to its primary body than any other known planetary moon It is indeed so close that it orbits Mars much faster than Mars rotates and completes an orbit in just 7 hours and 39 minutes
Phobos has two particularly striking geologic features first is the crater Stickney which dominates the Mars facing hemisphere The second is a network of long narrow linear structures called grooves shown in Fig 11 17 The grooves were first imaged by the Viking orbiters in the 1970s but have defied a consensus explanation to this day
A controlled drawing of the Phobos surface features was the first cartographic map of a moon of another planet with some craters given names by the IAU Nomenclature Committee The orbital speeds of Phobos and Deimos confirmed that Phobos was speeding up as it was spiraling in toward Mars while Deimos was spiraling away from Mars due to tidal
The age of Phobos and its largest crater Stickney
Surface refreshing of Martian moon Phobos by orbital Nature
Phobos s orbit is so fast it would appear to an observer on the planet to rise in the west and set in the East twice each Martian day As Phobos orbits it is getting closer to the planet as time goes by Eventually it will be destroyed by Mars s tidal forces in several tens of millions of years
Phobos the 22 km diameter innermost moon of Mars is a groovy body Unlike its little brother Deimos Phobos has developed a striking pattern of parallel linear features running across its
Could the Surface of Phobos Reveal Secrets of the Martian
Deimos Orbit Size Facts Britannica
Phobos orbits Mars at a distance of 6 000 kilometers above the planet s surface closer than any other moon to its parent planet in our solar system The moon completes one orbit around Mars every 7 hours and 39 minutes causing tidal interactions that slowly spiral it inward towards the Red Planet
Phobos an overview ScienceDirect Topics
There are a number of notable surface features on Phobos including the infamous Phobos monolith Phobos is the innermost moon of Mars Learn the facts
It was discovered telescopically with its companion moon Phobos by the American astronomer Asaph Hall in 1877 and named for one of the sons of Ares the Greek counterpart of the Roman god Mars Deimos is an irregular rocky object having a cratered surface covered with a thick layer of fine debris
Phobos the inner and larger of the two moons of Mars in a composite of photographs taken by the Viking 1 orbiter in October 1978 from a distance of about 600 km 370 miles The most prominent feature is the impact crater Stickney which is almost half as wide as the moon itself
Phobos Distance Differences Facts Size Surface
Phobos surface striations tell a story of its rupturing interior
Phobos is the larger of Mars 39 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 39 s surface that in some locations on Mars it cannot always be seen
A CubeSat mission to Phobos could map staging bases for a
Phobos Facts about Mars 39 Moon Phobos The Planets
Some ions scientists predict have been smashing into the surface of Phobos and could be preserved in its uppermost layer according to a paper published on Feb 1 in the journal Nature Geoscience
Phobos parallel grooves which are such a striking feature of its surface have attracted interest since their discovery on Viking images in 1976 Veverka and Duxbury 1977 J Geophys Res 82 4213 4223 but their origin is still in dispute today
Phobos NASA Science
For regions with steep slopes that vary substantially over one Phobos orbit the surface is excavated at a faster rate than the space weathering timescale Our model predicts that this new
Phobos Orbit Surface Features Britannica
Phobos Moon of Mars Solar System GO ASTRONOMY
The distribution and mutual relations of red and blue units characteristic of Phobos surface material have been studied through geologic analysis of the MRO HiRISE color images of Stickney crater and its surroundings
With the orbital mission concept Perseus could collect visible light images of the surface of Phobos down to 5m per pixel and thermal images of 25 m per one pixel as its scientific payload would
Videos for Phobos Orbit Surface Features Britannica
Spacecraft exploration of Phobos and Deimos ScienceDirect
Phobos Orbit Surface Features Britannica Image Results