Lucus Planum

Lucus Planum is a region on Mars, named after an albedo feature. Its name was approved by the IAU in 1997.^[1] The center latitude of the feature is 4.99 degrees S and the center longitude is 182.83 degrees.^[1] It lies just to the east and north east of the volcano Apollinaris Patera. Lucus Planum lies in both the Memnonia quadrangle and the Aeolis quadrangles. It is part of a region called the "Medusae Fossae Formation"^[2] Part of this region is covered with yardangs. They are formed by the action of wind on sand sized particles; hence they often point in the direction that the winds were blowing when they were formed.^[3][4] Views of yardangs in this region are shown below.

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  Wide context view of surface of Lucus Planum, as seen with CTX.
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  Closer view of yardangs from previous image, as seen with CTX.
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  Wide view of yardangs in Lucus Planum, as seen by HiRISE under HiWish program
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  Close view of yardangs in previous image, as seen by HiRISE under HiWish program
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  Close view of yardangs from a previous image, as seen by HiRISE under HiWish program

Lucus Planum

Topographic map showing the boundaries of Lucus Planum
Feature type	Plateau
Location	Mare Tyrrhenum quadrangle, Mars
Coordinates	4°59′S 177°10′W / 4.983°S 177.167°W / -4.983; -177.167[1]
Diameter	~900 km[1]
Eponym	Latin lucus