Erosion per spin (model B) on the large Imhotep plain when the sub-solar latitude is 48° (left image, May 2014), at southern solstice (center image, September 2015), and at equinox (right image, March 2016). The view is in the equatorial plane. The rotation axis is inclined by about 50° relative to the Imhotep plain. At southern solstice the cliff (indicated) is insolated and eroded much stronger than at equinox, when the Sun is high but farther away.
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