Planets Essay

806 WordsNov 3, 20114 Pages
MERCURY Its diameter is 2/5 that of our planet. Is the closest planet to the Sun. It is about 58 million kilometres from the Sun. Makes one complete orbit around the Sun every 87.97 days. Rotates on its axis very slowly compared to Earth. It completes one rotation in about 58 days and 15 minutes. Is covered with mountains, craters, ridges and valleys. Has no satellites. VENUS Is the closest planet to the Earth. It is about the same size as the Earth. Is the second planet in order from the Sun. It is about 108 million kilometres from the Sun. Makes one complete orbit around the Sun every 224.7 days. Rotates on its axis more slowly than any other planet. It completes one rotation in about 243 days and 24 minutes. Is the brightest object in our sky, besides the Sun and Moon. Has no satellites. EARTH Is the planet that we live on, our planet. Is the third planet in order from the Sun. It is about 150 million kilometres from the Sun. Makes one complete orbit around the Sun every 365 days. Rotates on its axis about the same speed as Mars (just a little slower). It completes one rotation in about 23 hours and 56 minutes. Is mostly covered by water (75%). Has a total of 1 satellite (the Moon). MARS Sometimes called the Red Planet. Its mass (weight) is 1/10th that of the Earth. Its diameter is 1/2 that of our planet. Is the fourth planet in order from the Sun. It is about 228 million kilometres from the Sun. Makes one complete orbit around the Sun every 686.98 days. Rotates on its axis about the same speed as the Earth. It completes one rotation in about 24 hours and 37 minutes. Has seasons similar to our planet, but they last much longer. Has a total of 2 satellites (or moons). JUPITER Is the largest of all the planets. Its mass (weight) is over 320 times that of the Earth. Its

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