Mercury is the smallest planet in our solar system and the closest to the sun. The distance from the Sun is about 57,900,000 miles. The planet's temperature is very hot because it is closer to the sun during the day, the temperature reaches about 430 ° C. But at night the temperature becomes too cold, reaching about -170 ° C. Distance planet with Earth about 92 million miles. It can only be seen at twilight in the morning or evening and can only be seen with the naked eye.
The entire planet rotates on its axis is called rotation speed as well. Mercury slowly rotates, the rotation of Mercury is 59.0 days. Besides spinning on its axis every planet moves around the sun is called the orbital motion / Ber-revolution. In contrast to the slow rotation, a period of relatively rapid orbital Mercury Revolution was 88.0 days. Compare with Earth takes one year (365.3 days) faster right?.
Mercury size of only 27% the size of the Earth. Mercury's surface projections similar to the lunar surface. Bumps that appear as a result of the collision of a meteor.
Mercury is heavily cratered and has no natural satellites and the atmosphere. Mercury has an iron core, which creates a magnetic field with a strength of 0.1% of the Earth's magnetic field strength.
Recorded observations of Mercury's first hour from the Sumerians in the third millennium BC. The Romans named the planet with the name of one of their gods, Mercury (aka Hermes in Greek mythology and Nabu in Babylonian mythology). Astronomical symbol for Mercury is an abstraction of the head of the god Mercury with winged cap above the caduceus.
The Greeks of the time of Hesiod called Mercury and Stilbon Hermaon due before the fifth century BC, they thought that Mercury is two different space object, that one looks at the time of sunrise and one looks just at sunset. In cultures of China, Korea, Japan and Vietnam, Mercury called "Save water". The Hebrews called Kokhav Hamah, "Summer Star" ("hot" means sun).
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