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Asgard
PlanetCallisto
Coordinates32°12′N 139°54′E / 32.20°N 139.90°E / 32.20; 139.90
Diameter1,400 km (870 mi)[1]
EponymAsgard
In this Galileo image, Asgard is centered in the pale region, just to the upper right of the image center, with surrounding concentric rings. Utgard is a smaller multi-ring structure superposed on the northern part of Asgard. The bright features are more recent impact craters, including Burr near the top, Tornarsuk at right, Njord below Tornarsuk, and Omolʹ above Tornarsuk to the right of Burr.
Textured terrain in Callisto's Asgard basin

Asgard is the second largest multi-ringed basin (large impact crater) on Jupiter's moon Callisto.[2] It is named after Asgard, the realm of the gods in Norse mythology. The central part of Asgard is dominated by the domed Doh impact crater.

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 crater.

References

  1. ^ Asgard, Gazetteer of Planetary Nomenclature, International Astronomical Union (IAU) Working Group for Planetary System Nomenclature (WGPSN), accessed 13 November 2022
  2. ^ a b Greeley, R.; Klemaszewski, J. E.; Wagner, L.; et al. (2000). "Galileo views of the geology of Callisto". Planetary and Space Science. 48 (9): 829–853. Bibcode:2000P&SS...48..829G. doi:10.1016/S0032-0633(00)00050-7.
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