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A chain of craters on Ganymede, probably caused by a similar impact event.The picture covers an area approximately 190 km (120 mi) across. Jupiter is a gas giant planet with no solid surface; the lowest atmospheric layer, the troposphere, gradually changes into the planet's inner layers. [10]
Valhalla is the largest multi-ring basin on Callisto and in the Solar System (with diameter up to 3,800 km). [4] It was discovered by the Voyager probes in 1979–80 and is located on the leading hemisphere of Callisto, in its Jupiter facing quadrant slightly to the north of the equator (at about 18°N latitude and 57°W longitude).
Achelous (/ ˌ æ k ɪ ˈ l oʊ. ə s /) is a relatively young impact crater on Jupiter's largest moon Ganymede.Located nearby the similarly-sized Gula, both craters are surrounded by a distinct raised pedestal formed from ejecta blasted out by their formative impact events. [2]
Comet Shoemaker–Levy 9 (formally designated D/1993 F2) was a comet that broke apart in July 1992 and collided with Jupiter in July 1994, providing the first direct observation of an extraterrestrial collision of Solar System objects. [5]
Following are the largest impact craters on various worlds of the Solar System. For a full list of named craters, see List of craters in the Solar System. The ratio column compares the crater diameter with the diameter of the impacted celestial body. The maximum crater diameter is 157% of the body diameter (the circumference along a great circle).
This is a list of officially named craters in the Solar System as named by IAU's Working Group for Planetary System Nomenclature.As of 2017, there is a total of 5,223 craters on 40 astronomical bodies, which includes minor planets (asteroids and dwarf planets), planets, and natural satellites. [1]
Crater Epigeus on Ganymede. Epigeus is the largest known impact crater on Jupiter's Galilean satellite Ganymede, with a diameter of 343 km.It is 6.5% the mean equatorial diameter of Ganymede, 5,270 km (3,270 mi).
Gula is a pedestal impact crater on Jupiter's moon Ganymede.Located immediately to the north of the similarly-sized Achelous, both craters are surrounded by a thick ring of impact ejecta blasted out by their respective impact events. [2]