Mercury

MERCURY         In Roman mythology atomic number 80 is messenger of the gods, and son of the god Jupiter. quicksilver is the artificial planet closest to the solarize. Its distance from the sun is near 58 one thousand thousand km ( or so 36 million miles); its diam is 4875 km (3030 miles); its volume and mass are almost : that of the frame politic; and its density is approximately equal to that of the earth. Mercury revolves some the sun in a occlusion of 88 days. radar observations of the planet show that its period of rotation is 58.7 days, or two-thirds of its period of revolution. The planet, therefore, rotates unitary and a half times during each revolution. Because its progress consists of rough, porous, dark-colored rock, Mercury is a poor reflector of sunlight. Mercury is the stand by smallest planet in the solar clay and it has no know moons.          spectroscopic studies indicate that only an extremely thin atmosphere, containing atomic number 11 and potassium. Collisions with opposite protoplanets early in the history of the solar system whitethorn have stripped away lighter materials, thereby report for Mercurys great density. The force of gravity on the planets come out is about one-third of that on earths surface.         The Mariner 10 ballistic capsule passed Mercury twice in 1974 and once in 1975.

It send linchpin pictures of a moonlike, crater-pocked surface and reported temperatures to be about 430° C (about 810° F) on the sunlit side and about -180° C (about -290° F) on the dark side. Its atmosp here consists of sodium, helium, hydrogen, a! nd oxygen. Mariner 10 in addition notice a magnetic field 1 pct that of the earth. dissimilar that of the earths moon, the surface of Mercury is criss-crossed by long escarpments, date possibly from the period of contraction the planet experienced as it cooled both(prenominal) time early in its history. If you want to get a full essay, order it on our website: OrderCustomPaper.com

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