<p>Praise for the hardcover edition:<br><b><i>BEST BOOKS 2007, JUNIOR HIGH AND YOUNG ADULTS, ASTRONOMY<br>"Simply put, this book is a real gem."</i><br>-- Science Books and Films</p><p></p><i>"A glorious vision of the universe."</i><br>-- American Reference Books Annual</b></p><p><b><i>300 Astronomical Objects</i></b> is a handy and comprehensive reference to the most interesting celestial objects. It takes readers on a photographic tour through the galaxy, from its solar core to its outer limits, stopping to view all the highlights and give the very latest data about the universe.</p><p>Convenient sidebars with each entry provide up-to-date facts and figures on every object, including mass, magnitude, density, radius, rotation period, and surface and core temperatures. An annotated cross-section of the object enhances this information, and a full-color photograph brings the object to life.</p><p>Additional spreads bring together and explain related objects and phenomena. For example, the corresponding pages for the sun include solar power, sunspots and solar flares. Others examples include:</p><ul><li>Mercury and its surface<li>The asteroid belt and 433 Eros<li>Jupiter and its moons, including Io, Europa and Callista<li>Uranus and its rings and moons, including Ariel and Titania<li>Outer belts and comets, such as Halley's comet, and the Deep Impact mission<li>Space telescopes, including the International Space Station. </li></ul><p><b><i>300 Astronomical Objects</i></b> is a beautiful and handy reference for the amateur astronomer.</p>