Mare Frigoris

[fri-gawr-is, -gohr-]

noun

1. (Sea of Cold ) a dark plain in the northern hemisphere, in the first and second quadrants of the face of the moon: about 55 miles (90 km) wide at its narrowest width and 750 miles (1,200 km) long: about 67,000 sq. mi. (174,000 sq. km).

Example Sentences

The lander, also known as Mission 1, or M1, was meant to touch down in Atlas Crater in the Mare Frigoris region on the northern hemisphere of the moon’s near side about an hour after an initial deorbit maneuver.

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Mare Frigoris, for example, a long-recognised dark stripe on the lunar surface, is evidently an edge to the ancient rift system.

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Eastward of Plato a line of highlands, separating the Mare Imbrium from the Mare Frigoris, carries the eye to the beautiful semicircular Sinus Iridum, or "Bay of Rainbows."

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The long, narrow, dark plain, whose nearest edge is about thirty degrees south of the pole, is the Mare Frigoris, bordered on both sides by uplands and mountains.

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ARCHYTAS.—A bright ring-plain, 21 miles in diameter, on the edge of the Mare Frigoris, due N. of the Alpine Valley, with regular walls rising about 5000 feet above the interior on the N.W., and about 4000 feet on the opposite side.

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