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Winter Frost and Fog

Feb. 5, 2005
NASA's Mars Global Surveyor shows the crater, Terby, and its vicinity in December 2004. Located north of Hellas, this region on Mars can be covered with seasonal frost and ground-hugging fog, even in the afternoon.

This somewhat oblique blue wide angle Mars Global Surveyor (MGS) Mars Orbiter Camera (MOC) image shows the 174 km (~108 mi) diameter crater, Terby, and its vicinity in December 2004. Located north of Hellas, this region can be covered with seasonal frost and ground-hugging fog, even in the afternoon, despite being north of 30°S. The subtle, wavy pattern is a manifestation of fog.

Location near: 28°S, 286°W
Illumination from: upper left
Season: Southern Winter

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