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Voyager 1 image of Valhalla, a multi-ring impact structure 3,800 km in diameter. The largest impact features on Callisto's surface are multi-ring basins. [13] [61] Two are enormous. Valhalla is the largest, with a bright central region 600 km in diameter, and rings extending as far as 1,800 km from the center (see figure). [63]
Name Coordinates Diameter (km) Approval Date Namesake Refs Eikin Catena: 223.10: 1997: Eikin: WGPSN: Fimbulthul Catena: 287: 1997: Fimbulthul: WGPSN: Geirvimul Catena
Heimdall is one of the largest known impact craters on Jupiter's Galilean satellite Callisto, with a diameter of 210 km. It is located near the Callistoan south pole at 63°30′S 3°00′E / 63.5°S 3°E / -63.5; 3 ( Heimdall
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).
A smaller multi-ring structure is superposed on the northern part of Asgard. It is called Utgard (also from Norse mythology) and measures around 600 km (370 mi) in diameter. [2] Utgard is the fourth largest multi-ring feature on Callisto. A substantial part of the central region of Utgard is covered with deposits from the relatively young Burr ...
The largest, Ganymede, is the largest moon in the Solar System and surpasses the planet Mercury in size (though not mass). Callisto is only slightly smaller than Mercury in size; the smaller ones, Io and Europa, are about the size of the Moon. The three inner moons — Io, Europa, and Ganymede — are in a 4:2:1 orbital resonance with each other.
The central zone of Lofn (100–120 km in diameter) corresponds to the crater floor, which lies about 0.6 km below the surrounding cratered plains. Lofn is a shallow crater as compared to other craters of similar size. This is the main reason why it is called a flat-floored or anomalous dome crater. [2] Other examples of such craters are Doh ...
This is a list of named craters on Callisto, one of the many moons of Jupiter, the most heavily cratered natural satellite in the Solar System (for other features, see list of geological features on Callisto). [1]