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Scientific Blog

15 مايو 2011 - 08.40:11
Planet Mercury
Planet Mercury

mecury01.jpg (6038 bytes)   mecury02.jpg (11268 bytes)   mecury03.jpg (6491 bytes)


Mercury is the closest planet to the sun, which revolves around a distance of an average of almost 58 million km.
Because Mercury is so, it moves faster than any other planet, with an average speed of 48 kilometers per second, and completes its orbit around the sun, in barely a period of less than 88 days


And Mercury to the rocky planet is too small (only Pluto is smaller than) spread cratering on its surface density as a result of collision of meteorites (meteorites) tags, and there are smooth plains it Tantther the ravines in a non-dense

The largest cratering on Mercury is never Kaloris Basin, which is about 1300 kilometers measured from side to side, and believed to be that when the rock hit the planet sized asteroid, which is surrounded by concentric rings of mountains, rose as a result of impact

Full of Mercury's surface also Lakeod (protrusions) many believed they were formed when the cold core of the planet warm Algueti and shrinking since about 4 billion years, have led this process to inflate the planet's surface

Mercury revolves on its axis very slowly absorbed 59 days on the ground roughly, to complete one cycle. As a result, continue on solar and one in the Mercury (from sunset to sunset) 176 Earth days - a land - the longest of the year twice Attardip that is equal to 88 days

Of Mercury's surface temperatures ranged between LED Screens a maximum equal to 430 m on the lighthouse light of the sun, and 170 m on the dark side

When night falls, the temperature drops very quickly because the planet's atmosphere is almost nonexistent, which consists of tiny amounts of helium and hydrogen taken the planet from the solar wind as well as traces of other gases

the prof · شوهد 79 مرة · وضع تعليق

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http://theprofmohamedbelal.blogalmanar.com/Scientific-Blog-b4/Planet-Mercury-b4-p14.htm

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