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Mädler (Martian crater) From Wikipedia, the free encyclopedia Jump to navigation Jump to search Mädler Planet Mars Coordinates 10°42′S 2°42′E  /  10.7°S 2.7°E  / -10.7; 2.7 Coordinates: 10°42′S 2°42′E  /  10.7°S 2.7°E  / -10.7; 2.7 Diameter 125.0 km Eponym Johann Heinrich Mädler Mädler is a crater on Mars named in honor of the German astronomer Johann Heinrich Mädler. It is located at 2.7°E 10.7°S. Mädler and collaborator Wilhelm Beer produced the first reasonably good maps of Mars in the early 1830s. When doing so, they selected a particular feature for the prime meridian of their charts. Their choice was strengthened when Giovanni Schiaparelli used the same location in 1877 for his more famous maps of Mars. The feature was later called Sinus Meridiani ("Middle Bay" or "Bay of the Meridia...

Lyot (Martian crater) From Wikipedia, the free encyclopedia Jump to navigation Jump to search This article is about the crater on Mars. For the lunar crater, see Lyot (lunar crater). Lyot Crater Lyot Crater Dunes, as seen by HiRISE. Click on image to see light toned deposits and dust devil tracks. Planet Mars Region Ismenius Lacus quadrangle Coordinates 50°48′N 330°42′W  /  50.8°N 330.7°W  / 50.8; -330.7 Coordinates: 50°48′N 330°42′W  /  50.8°N 330.7°W  / 50.8; -330.7 Diameter 236 km Eponym Bernard Lyot, French astronomer (1897–1952) Lyot is a large crater in the Vastitas Borealis region of Mars, located at 50.8° north latitude and 330.7° west longitude within the Ismenius Lacus quadrangle. It is 236 km in diameter and was named after Bernard Lyot, a French astronomer (1897–1952). [1] The name was app...

Lyell (Martian crater) From Wikipedia, the free encyclopedia Jump to navigation Jump to search This article is about the crater on Mars. For the crater on the Moon, see Lyell (lunar crater). Lyell Crater Location of Lyell Crater. This map has its craters appear oval due to foreshortening from the view at the equator Planet Mars Region Mare Australe quadrangle Coordinates 70°06′S 15°36′W  /  70.1°S 15.6°W  / -70.1; -15.6 Coordinates: 70°06′S 15°36′W  /  70.1°S 15.6°W  / -70.1; -15.6 Diameter 131 km Eponym Charles Lyell Lyell Crater is an impact crater in the Mare Australe quadrangle of Mars, located at 70.1°S latitude and 15.6°W longitude. Lyell is also inside Noachis Terra and sits on the edge of the Sisyphi Planum. It is 131.0  km in diameter and was named after Charles Lyell, and the name was approved in 1973 by...