Discovering the Solar System.Complete with two books, a desktop mobile, and an interactive wall chart, this pack covers a range of information about the solar system solar system, the sun and the surrounding planets, natural satellites, dwarf planets, asteroids, meteoroids, and comets that are bound by its gravity. The sun is by far the most massive part of the solar system, containing almost 99.9% of the system's total mass. . The first book, written by Hughes, vice president of the Royal Astronomical Society This article is about the British Society. For the Canadian Society, see Royal Astronomical Society of Canada. The Royal Astronomical Society (RAS) is a learned society that began as the Astronomical Society of London in 1820 to support astronomical , provides an overview of the solar system, from the birth of the sun and formation of the planets to a description of terrestrial planets terrestrial planet, the earth or a planet that resembles the earth in its physical characteristics. The terrestrial planets in the solar system are the earth, Mercury, Venus, and Mars. These planets are approximately the same size, with the earth the largest. and gas giants as they appear today. He also covers the solar system's comets and asteroids This is a list of numbered minor planets, nearly all of them asteroids, in sequential order. As of late September 2007 there are 164,612 numbered minor planets, and many more not yet numbered. Most asteroids are ordinary and not particularly noteworthy. . In the second book, Stott, a spacescience writer and an astronomer, provides an inventory of various space missions throughout the solar system, including the moon landings, probes sent to the inner planets and the sun, the Mars rovers, and planned missions. Included with these books are cardboard cutouts for constructing a desktop model of the solar system and a wall chart depicting the planets, with statistics on each one, such as its distance from the sun, orbital period The orbital period is the time taken for a planet (or another object) to make one complete orbit. When mentioned without further qualification in astronomy this refers to the sidereal period of an astronomical object, which is calculated with respect to the stars. , and average temperature. A sheet of stick-on mission markers is included, each listing a different satellite or rover with its launch date and mission description. Barren's, 2006, 96 p., color images, paperback, $29.99. |
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