Astronomy:Cyane Fossae

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Short description
Fossae on Mars
Cyane Fossae
Cyane Fossae based on day THEMIS.png
Cyane Fossae based on THEMIS day-time image
CoordinatesCoordinates: 31°18′N 121°12′W / 31.3°N 121.2°W / 31.3; -121.2

Cyane Fossae is a trough in the Diacria quadrangle of Mars. It is centered at 31.3° north latitude and 121.2° west longitude. It is 913 kilometres (567 mi) long and was named after a classical albedo feature name.[1]

The term "fossae" is used to indicate large troughs when using geographical terminology related to Mars. Troughs, sometimes also called grabens, form when the crust is stretched until it breaks, which forms two breaks with a middle section moving down, leaving steep cliffs along the sides. Sometimes, a line of pits form as materials collapse into a void that forms from the stretching.[2]


  1. "Cyane Fossae". Gazetteer of Planetary Nomenclature. USGS Astrogeology Research Program.
  2. Mars Global Surveyor MOC2-620 Release