Syrtis Major is a distinctive dark marking on the surface of Mars, seen as a large wedge-shaped feature named after the neighbouring Gulf of Sidra (or Sirte) off the coast of Libya. Syrtis Major is the most obvious dark region on the Martian surface which extends towards the equator some 1,500 km and spans 1,000 km from west to east.
Below are images obtained last night under local unstable atmospheric conditions (15 knots of wind). However, subtle details were visible which are somewhat comparable to those observed by the Hubble Space Telescope (lower figure).
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