Acre Of Mars

Facts about your new acre!Mars is the farthest rocky planet from the Sun. Mars has a diameter of 4200 miles 6800 km just over half the diameter of the Earth and its mass is only 11% of the Earth's mass. The mean distance of Mars from the Sun is about 141 million miles 228 million km its period of revolution is about 687 days almost twice that of the Earth. At those times when the Sun Earth and Mars are aligned i.e. in opposition and Mars is at its closest point to the Sun perihelion its distance from the Earth is about 35 million miles 56 million km this occurs every 15 to 17 years. At oppositions when Mars is at its greatest distance from the Sun aphelion it is about 63 million miles 101 million km from the Earth. It rotates on its axis with a period of about 24 hr 37 min a little more than one Earth day. From Earth it looks reddish in the sky so Mars is sometimes called the Red Planet. Mars has an extreme day to night temperature range resulting from its thin atmosphere from about 80F 27C at noon to about 100F 73C at midnight however the high daytime temperatures are confined to less than 3 ft 1m above the surface. In 1971 the Mariner 9 space probe discovered a huge canyon Valles Marineris. Completely dwarfing the Grand Canyon in Arizona this canyon stretches for 2500 miles 4000 km and at some places is 125 miles 200 km across and 2 miles 3 km deep. Mars also has numerous enormous volcanoes including Olympus Mons c. 370 miles600 km in diameter and 16 miles26 km tall the largest in the solar system and lava plains. It is not known of any running water on Mars but dry riverbeds on its surface show that there possibly was water there long ago. Like Earth Mars has ice at its North and South Poles. There are only a few clouds in the Martian sky. These are made of ice so rain does not fall. Strong winds whip up huge dust storms that sometimes cover the whole planet. Mars has two moons Phobos and Deimos. The innermost of these Phobos is about 7 miles 11 km in diameter and orbits the planet with a period far less than Mars's period of rotation 7 hr 39 min causing it to rise in the west and set in the east. The outer satellite Deimos is about 4 miles 6km in diameter.

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