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C has 60 satellites d galileo first saw the rings of

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c) Has 60 satellites d) Galileo first saw the rings of Saturn , bus was unable to discern them clearly with his crude telescope e) Huygens in 1655, was able to describe their true form e.i) Moon of Saturn is Titan, and one of the largest moons in the solar system (e.i.1) Titan – moon of Saturn (e.i.1.a) Planet like atmosphere (e.i.1.b) Denser that the Earth (e.i.1.c) Methane in liquid form rains from the skies (e.i.1.d) Stable bodies of liquid on the surface 69) Uranus – named after the father of Saturn a) Discovered accidentally on March 13, 1781 by William Herschel b) Has 27 satellites c) Is the coldest planet in our solar system d) Has an extreme axial tilt of 98 degrees d.i)Meaning it is laying on its side 70) Neptune – found as a result of mathematical prediction a) By Calculations and observance of the orbit of Uranus, it was determined that there was another planet that was affecting the angle of its orbit b) Calculations by John Couch Adams and Sir George Airy 71) Pluto – originally a planet from 1930 until 2006 72) Comets - in medieval Europe comets were regarded as poisonous vapors in the Earth’s atmosphere making them the most superstitiously feared astronomical objects 73) Orbits – orbits of comets are oriented at random in space a) Comet can be observed from Earth only when it traverses that end of its orbit where it passes close to the sun b) Coma and Nucleus – head of a comet b.i)Coma – diffuse gaseous component of the head of a comet
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(b.i.1) as a comet approaches the sun the coma usually grows in brightness, but sometimes it disappears b.ii) the nucleus is primarily made of ice and dust – called “dirty snowball” c) many comets as they approach the sun develop tails of gas and dust that extend for millions of miles away from the head 74) Asteroid – different from a comet in that it doesn’t have a coma or a tail a) A comet is made of ice and dust, which has potential to heat up and form a coma and tail b) An asteroid is sold rock 75) Principle of Triangulation – all measurements of astronomical distance depend directly or indirectly on this principle a) Six quantities that describe the dimensions of a triangle a.i) The lengths of the 3 sides and the values of the 3 angles a.ii)
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