Syrtis Major


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Syrtis Major

(seer -tiss) A dark triangular plateau near the Martian equator and prominent to Earth-based observers. It slopes downward to the east and is prone to strong winds that move and remove light-colored dust to expose the darker rocks below. See also Mars, surface features.
References in periodicals archive ?
Syrtis Major can be spotted from the Earth even with relatively small telescopes.
Dust fallout from the global storm affected the shape and darkness of Syrtis Major.
In the dark center, above the sunrise line, lie the volcanic plains and vast sand dunes of Syrtis Major.
Syrtis Major, the most prominent dark marking, has undergone a dramatic, long-term widening since the 1950s.
Then, Nepenthes was conspicuous, and the Syrtis Major thinner at its northern tip.
The most prominent dark marking on Mars, Syrtis Major, is well placed for evening viewing from the longitudes of the Americas during the first half of November.
13 and released last month, shows Syrtis Major Planitia (dark area, middle).
The dark albedo feature Syrtis Major is crowned by the cloud-filled Hellas impact basin in the Martian southern hemisphere (top) while more clouds cling to the flanks of Elysium Mons (left).
To McKim on 2006 Jun 3 (Part I, Figure 2L), the Syrtis Major appeared slightly faded, possibly by the effect of the ECB (Part I, Figure 2L), and likewise to Adamoli on Jul 11.
The patera, which is the floor of a volcanic caldera, spans about 50 kilometres in the Syrtis Major volcanic region of equatorial Mars.
In the July 15th view Syrtis Major is the dark triangle above center; north is up in both images.
Around that time, a large complex of albedo features connecting Syrtis Major to Utopia, located at about 270[degrees]W and known as Thoth-Nepenthes, literally disappeared.