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.
Collins Dictionary of Astronomy © Market House Books Ltd, 2006
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. Viewed from late 2007 Aug it looked thin, and diminished to the east.
Syrtis Major, Sabaeus Sinus, and Meridiani Sinus, form a prominent group of dark markings near the Martian equator and will be well placed for viewing during the middle two weeks of January.
"They claim the face is more than one mile wide and located near Syrtis Major.
In the dark center, above the sunrise line, lie the volcanic plains and vast sand dunes of Syrtis Major. The bright area of the northern polar cap halos the top of the planet.
Nili Patera is a dune field on Mars that is located on top of a lava bed where an ancient volcano called the Nili Patera caldera of Syrtis Major used to be.
If you see a lot of white near the southern limb of Mars, and if this is south of the great dark Syrtis Major, that's not the south cap (which is tilted slightly out of view) but clouds or frosts filling the large Hellas basin.
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).
Other structures that can be seen in the photo are Sinus Sabaeus and Sinus Meridiani - long dark features south of Arabia Terra - and the Syrtis Major Planitia - one of the earliest features identified on the surface of the planet.