The original purpose of the "Longer View" books is to provide charts and descriptions of the planets' travels in the years ahead. But there is also the three-century human story (replete with controversies and ironies) of how the first "new" planets were discovered, each leading to the next. And there is much to point out about these bodies' characteristics and intricate motions. 80 illustrations, and 73 short chapters, such as "Herschel's oboe and telescope," "Not the predicted planet," "The apple of discord," "Pioneers and Voyagers to the outer giants," "Neptune's circular yet wavy orbit," "Clusters of Uranus events," "Uranus by Moonlight," "Pluto's much-more-than-sidewise rotation," "Grim ferryman," "The Neptune-Pluto standoff," "The Pluto-Charon embrace," "Pluto's painted deserts," "Oligarchs and Plutocrats..".
Explores the relationship between the Sun and the three outer planets of the solar system from the point of view of a planetary scientist, examining the role of Uranus, Neptune, and Pluto as recorders of the formation of the solar system.
Pluto looms large in Flagstaff, where residents and businesses alike take pride in their community's most enduring claim to fame: Clyde Tombaugh's 1930 discovery of Pluto at Lowell Observatory. Percival Lowell began searching for his theoretical "Planet X" in 1905, and Tombaugh's "eureka!" experience brought worldwide attention to the city and observatory. Ever since, area scientists have played leading roles in virtually every major Pluto-related discovery, from unknown moons to the existence of an atmosphere and the innovations of the New Horizons spacecraft. Lowell historian Kevin Schindler and astronomer Will Grundy guide you through the story of Pluto from postulation to exploration.
• Explains in detail how the demotion or proved nonexistence of a planet marks the beginning of a roughly 30-year period in which that planet’s influence wanes • Explores Pluto’s arc of influence on individual and collective life in depth, from its discovery in 1930 to the end of its influence in 2036 • Offers examples from other demoted planets, such as Ceres, whose fifty-year reign as a planet corresponds very closely to the Romantic Era of history Recent research in astrology has shown that the discovery of a new planet correlates with the emergence of a new set of influences in individual and collective life. As John Michael Greer reveals, the opposite is also true: the demotion of a planet correlates with the decline of a set of influences into the background. Exploring the waxing and waning of planetary influences in astrology, Greer explains in detail how the demotion or proved nonexistence of a planet marks the beginning of a roughly 30-year period in which that planet’s influence fades out. He examines several examples of planet demotion, including Ceres, whose influence began to take shape some 30 years before its discovery in 1801 and gradually faded over the three decades following its demotion in the 1850s. Examining Pluto’s astrological influence in depth, from the beginning of the search for “Planet X” in 1900 to the end of its influence in 2036, the author shows how during the Plutonian era the concept of cosmos--from the ancient Greek meaning “that which is beautifully ordered”--was in eclipse. Pluto’s influence led to the rejection of unity, beauty, and order, exemplified through the splitting of the atom by physicists, the splitting of the individual into conscious and subconscious halves by psychoanalysts, and the splitting of the world into warring camps by politicians. Offering an essential guide not only to the astrology of the future but also to the twilight of the Plutonian era, Greer shows how as Pluto’s influence fades out in the years ahead, a great many disruptive phenomena of the recent past will fade with it.
Explores the outer solar system, what Uranus, Neptune, and Pluto would be like, why it would take a whole lifetime to travel to Pluto and whether humans could ever live there.
A Note from the Author: On August 24, 2006, at the 26th General Assembly of the International Astronomical Union (IAU) in Prague, by a majority vote of only the 424 members present, the IAU (an organization of over 10,000 members) passed a resolution defining planet in such a way as to exclude Pluto and established a new class of objects in the solar system to be called "dwarf planets," which was deliberately designed to include Pluto. With the discovery of Eris (2003 UB313)—an outer solar system object thought to be both slightly larger than Pluto and twice as far from the Sun—astronomers have again been thrown into an age-old debate about what is and what is not a planet. One of many sizeable hunks of rock and ice in the Kuiper Belt, Eris has resisted easy classification and inspired much controversy over the definition of planethood. But, Pluto itself has been subject to controversy since its discovery in 1930, and questions over its status linger. Is it a planet? What exactly is a planet? Is Pluto a Planet? tells the story of how the meaning of the word "planet" has changed from antiquity to the present day, as new objects in our solar system have been discovered. In lively, thoroughly accessible prose, David Weintraub provides the historical, philosophical, and astronomical background that allows us to decide for ourselves whether Pluto is indeed a planet. The number of possible planets has ranged widely over the centuries, from five to seventeen. This book makes sense of it all—from the ancient Greeks' observation that some stars wander while others don't; to Copernicus, who made Earth a planet but rejected the Sun and the Moon; to the discoveries of comets, Uranus, Ceres, the asteroid belt, Neptune, Pluto, centaurs, the Kuiper Belt and Eris, and extrasolar planets. Weaving the history of our thinking about planets and cosmology into a single, remarkable story, Is Pluto a Planet? is for all those who seek a fuller understanding of the science surrounding both Pluto and the provocative recent discoveries in our outer solar system.
Presents information about the three outer planets of Uranus, Neptune, and Pluto, including when and how they were discovered, what is currently known about them, and relevant spacecraft expeditions.
An adventure in scientific discovery Pluto, the farthermost planet in the solar system, some 3,673 million mites from the Sun, was discovered by Clyde Tombaugh at the Lowell Observatory in 1930. The fiftieth anniversary of Pluto's discovery will be celebrated in 1980 and OUT OF THE DARKNESS: THE PLANET PLUTO tells the exciting scientific story of the twenty-five year search for a planet X beyond Neptune, and its discovery-the only planet found in the twentieth century. The planets Mercury, Venus. Mars, Jupiter, and Saturn were all known since antiquity. Then Sir William Herschel discovered Uranus in 1781, and 65 years later, in 1846, Johann Calle and Urbain le Verner discovered Neptune. Variations in orbital perturbations of the planets and theoretical astronomy were responsible for predicting and discovering the three outermost planets (Uranus, Neptune, and Pluto) and so Pluto's story is also, to some extent, the story of its planetary neighbors. What kind of world is Pluto? Much is still a mystery (its exact size, for instance), but there are some facts. It takes 247.7 years for Pluto to revolve around the sun. From Pluto's surface, the Sun appears as a star-like point; giving only on-one-hundredth the light Earth receives, although it is still brighter than a full Moon. There is strong evidence to suggest that Pluto is an escaped satellite of Neptune, a sister moon of Triton that wandered off to become the farthermost planet revolving around the Sun. And the recent discovery of Pluto’s moon, Charon, and the speculation on a tenth planet beyond Pluto add to the mystery that still prevails 50 years after coauthor Clyde Tombaugh exclaimed “That’s it!” when he saw the change of position of a faint object on the photographic plates after examining millions of star images. That evening, the only man alive to discover a planet, went to the movies and saw Gary Cooper in The Virginian. The night sky was cloudy when he came out of the theatre, but his mind’s eye still saw the faint image of Pluto.
