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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]
This is a list of named geological features on Callisto, a moon of Jupiter. This list is complete as of August 2022. This list is complete as of August 2022. Catenae
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).
9.39 × 10 20 0.00016 1.30 × 10 22 ... (900–1000 km diameter, rather than 400 km as for the moons of Saturn and Uranus). ... ^ Callisto's axial tilt varies between ...
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 ...
Europa (Jupiter II), the second of the four Galilean moons, is the second closest to Jupiter and the smallest at 3121.6 kilometers in diameter, which is slightly smaller than Earth's Moon. The name comes from a mythical Phoenician noblewoman, Europa , who was courted by Zeus and became the queen of Crete , though the name did not become widely ...
The research team determined the origin and age of Mimas’ ocean by studying how the moon, roughly 249 miles (400 kilometers) in diameter, responded to the gravitational forces that Saturn ...
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