Home » Planets (The Universe Book 1) by Astrid Ohlmeier
Planets (The Universe Book 1) Astrid Ohlmeier

Planets (The Universe Book 1)

Astrid Ohlmeier

Published December 24th 2013
ISBN :
Kindle Edition
26 pages
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 About the Book 

This book begins with the Solar System. The radius, atmosphere, magnetosphere, temperature and composition of each planet are clarified, including the number of moons. This will provide a better understanding regarding the nature of planets outsideMoreThis book begins with the Solar System. The radius, atmosphere, magnetosphere, temperature and composition of each planet are clarified, including the number of moons. This will provide a better understanding regarding the nature of planets outside the solar system or extra-solar planets.Planets of other systems are very difficult to detect and to observe due to their bright stars. The first planetary system was observed in 1989 using the radial velocity method. This is an indirect method for finding planets from radial-velocity measurements via observation of Doppler shifts in the spectrum of the planets parent star. Astronomers use several other methods, which are briefly described. In March 2009 the Kepler Space Telescope was launched and has found hundreds of possible planets. A total of 710 planetary systems, including 142 multiple planetary systems have been identified over the years. Most planetary systems contain gas giants like Jupiter and much larger. The confirmation of planets like Neptune is documented including planets similar to Earth with a rocky surface, liquid water and an atmosphere. In fact, 262 habitable planets have been confirmed.Soon or later habitable planets with life, including intelligent life will be introduced, as the next NASA mission is planned in 2016. The motivations and concerns of well-known Scientists are described.