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).
BodyCraterCrater diameter Body diameter RatioImagesNotesMercury Caloris 4,880 km 32% Rembrandt 15% Venus Mead 12,100 km 2% Earth Vredefort 250–300 km 12,740 km 2% Chicxulub crater 1.4% Cause or contributor of the Cretaceous–Paleogene extinction event Sudbury Basin 1% Moon(moon of Earth) Procellarum 3,470 km 86% Not confirmed as an impact basin. South Pole–Aitken basin 70% Imbrium 33% Mars North Polar Basin 10,600 × 8,500 km 6,780 km 125–155% Not confirmed as an impact basin Utopia 50% Largest confirmed impact basin on Mars and in the Solar System Hellas 34% Largest visible crater in the Solar System Isidis ~ 28% Heavily degraded to the northeast Argyre 25.1% May have an outer ring 2750 km in diameterVesta (asteroid) Rheasilvia 529 km (569 km) 90%Rheasilvia and Veneneia are 95% and 75% of the mean diameter of Vesta, 529 km. However, the mean is affected by the craters themselves. They are 89% and 69% the mean equatorial diameter of 569 km. Veneneia 70% Partially obscured by Rheasilvia (dwarf planet) Kerwan Planetary Names: Search Results 952 km 30% Faint shallow crater, below the center of this image. Yalode 28% Hygiea (asteroid) Serpens 434 ± 14 km 40% Ganymede(moon of Jupiter) Epigeus 5,270 km 6.5% Callisto(moon of Jupiter) Valhalla 4,820 km 7.5% Heimdall 4% Bright white crater, bottom right. Mimas(moon of Saturn) Herschel 396 km 35% Tethys(moon of Saturn) Odysseus 1,060 km 42% Dione(moon of Saturn) Evander USGS 1,123 km 34% Rhea(moon of Saturn) Mamaldi USGS1,530 km 31% Tirawa 24% Titan(moon of Saturn) Menrva 5,150 km 7.5% Iapetus(moon of Saturn) Abisme 1,470 km 52% Turgis 40% Engelier 34% Gerin 30% Gerin is overlain by Engelier Falsaron 29% Titania(moon of Uranus) Gertrude 1,580 km 21% Little of Titania has been imaged, so it may well have larger craters. Pluto (dwarf planet) Sputnik Planitia basin ca. 1,400 × 1,200 kmaverage: ~1,300 km2,377 km 54.7% Partially infilled by convecting Nitrogen ice, heavily eroded Burney 12.5% Heavily degraded, difficult to see Charon(moon of Pluto) Dorothy ca. 1,207 km 21% Crater at upper right overlapping Mordor Macula
See also List of Solar System extremes List of largest lakes and seas in the Solar System List of largest rifts and valleys in the Solar System List of tallest mountains in the Solar System
References