Mercury is the smallest planet in the solar system and also the closest to the Sun with 88 days when the revolution. Planet brightness ranges between -2 to 5.5 in apparent magnitude, but not easily visible because the angle of view with a little sun (with the most distant range of 28.3 degrees. Mercury can be seen only at dawn or evening prayer. Not so much is known of Mercury because it is only one spacecraft has ever approached the Mariner 10 in 1974 until 1975. Mariner 10 only managed to map about 40 to 45 percent of the planet's surface.
Similar to the Moon, Mercury has many craters and also has no natural satellites and the atmosphere. Mercury has an iron core that creates a magnetic field with strength 0.1% of the earth's magnetic field strength. Mercury's surface temperature ranges from 90 to 700 Kelvin (-180 to 430 degrees selsius).
Similar to the Moon, Mercury has many craters and also has no natural satellites and the atmosphere. Mercury has an iron core that creates a magnetic field with strength 0.1% of the earth's magnetic field strength. Mercury's surface temperature ranges from 90 to 700 Kelvin (-180 to 430 degrees selsius).
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