Solar system consists of the sun and a large number

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56) Solar System – consists of the sun and a large number of smaller objects gravitationally associated with it a) 99.9 % of the matter is the sun b) .135 planets
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c) .00004 Satellites d) .00003 comets e) .0000003 Minor Planets f) .0000003 Meteoroids g) .0000001 Interplanetary Medium 57) Sun is a typical Star – a great sphere of luminous gas, which practically is the solar system a) Sun is composed of the same chemical elements of the Earth a.i) In the sun these elements are heated to the gaseous state 58) Visible part of the sun is 864,000 miles across a) The distance is 109 times the diameter of the Earth 59) Planets – small, cool and solid, in contrast to the sun 60) Meteoroids – shooting stars – small objects orbiting the sun a) Often plunge through the Earth’s atmosphere and heat with friction until they vaporize “shooting stars” 61) Meteorite – a meteoroid that has survived its flight through Earth’s atmosphere and landed on the ground a) Many in museums b) Largest know have masses about 50 tons and the same elements that exist in Earth b.i)Ablation – the fragmentation and vaporization of a meteorite upon entering the atmosphere (b.i.1.a) As it collides with air molecules the pieces chip off 62) Satellites – of the planets are the next most prominent member of the solar system 63) Interplanetary Medium – dust and gas is a sparse distribution of micrometeorites and atoms or electrons of gas throughout the solar system 64) Mercury – the smallest planet 65) Venus – named for the goddess of love and beauty a) Called the Earth’s sister for it is most like the Earth in mass and size of all the planets b) NO satellites 66) Mars – called the “Newspaper Planet” – as it is most favorably situated of the planets for observation from the Earth a) Has a thin atmosphere b) Is composed almost entirely of carbon dioxide (95%)
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c) Surface shows that the planet once had an abundance of water c.i) Any water on the thin surface today would vaporize instantly d) Which means it had a thicker atmosphere one time e) Has 2 satellites 67) Jupiter – named for the leader of the gods a) Is the largest and most massive object in the solar system next to the sun b) Has 63 known satellites 68) Saturn – unique ring makes this planet the most impressive my telescope a) Second largest planet b) Named for the god of seed sowing, Father of Jupiter??
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