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Galileo image of a region in the south hemisphere of Callisto.

Jalkr is a bright crater on Jupiter's moon Callisto measuring 74 km across (in the lower part of the image). This an example of a central dome impact crater. [1] A smaller degraded crater in the upper part of the image is called Audr.

References

  1. ^ Greeley, R.; Klemaszewski, J.E.; Wagner L.; the Galileo Imaging Team (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.