Is Pluto a Planet

s Pluto a planet? This question appears so simple—clearly the answer is either
yes or no—yet the simplicity is misleading. Logically, we must know what a planet
is and determine whether Pluto fits those criteria if we are to construct a ...

Author: David A. Weintraub

Publisher: Princeton University Press

ISBN: 1400852978

Category: Science

Page: 280

View: 831

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.


Describes the planet's characteristics, discussing its position, demotion to dwarf planet, size, satellites, composition, and appearance from Earth.

Author: Thomas K. Adamson

Publisher: Capstone

ISBN: 9781429607360

Category: Juvenile Nonfiction

Page: 24

View: 713

Describes the planet's characteristics, discussing its position, demotion to dwarf planet, size, satellites, composition, and appearance from Earth.


When Pluto was first discovered in 1930, humankind was already beginning to
tinker with the atoms of uranium. That tinkering would, years later, result in the
release of huge amounts of plutonium into our environment, an element
occurring ...

Author: Richard Grossinger

Publisher: North Atlantic Books

ISBN: 1583948988

Category: Body, Mind & Spirit

Page: 312

View: 541

Encompassing astronomy, mythology, psychology, and astrology, Pluto offers a wealth of knowledge about our most famous dwarf planet. First observed in 1930 and once defined as the ninth and final planet in our solar system, Pluto and its discovery and reclassification throw a unique light on how we generate meaning in science and culture. This anthology, timed to appear in concordance with NASA’s New Horizons's approach to Pluto in July 2015, shows that while the astronomical Pluto may be little more than an ordinary escaped moon or tiny Kuiper Belt object, it is a powerful hyperobject, for its mythological and cultural effigies on Earth incubate deep unconscious seeds of the human psyche. Certain astronomical features pertain to Pluto in terms of its distance from the Sun, coldness, and barrenness. These also inform its mythology and astrology as befitting a planet named after the God of the Underworld. Among the issues central to this collection are the meanings of darkness, loss, grief, inner transformation, rebirth, reincarnation, and karmic revelation, all of which are associated with the astrology of Pluto. Pluto also embodies the meaning of true wealth as being nonmaterial essence instead of property, conventional accolades, ego identity, achievement. It is the marker of negative capability. Table of Contents Dana Wilde: Pluto on the Borderlands Richard Grossinger: Pluto and The Kuiper Belt Richard C. Hoagland: New Horizon … for a Lost Horizon J. F. Martel: Pluto and the Death of God James Hillman: Hades Fritz Bruhubner: The Mythology and Astrology of Pluto Thomas Frick: Old Horizons John D. Shershin: The Inquisition of Pluto Stephan David Hewitt: Pluto and the Restoration of Soul Jim Tibbetts: Our Lady of Pluto, the Planet of Purification Shelli Jankowski-Smith: Love Song for Pluto Robert Kelly: Pluto Dinesh Raghavendra: Falling in Love with a Plutonian Steve Luttrell: Dostoevsky's Pluto Philip Wohlstetter: Ten Things I'd Like to Find on Pluto Jonathan Lethem: Ten Things I'd Like to Find on Pluto Robert Sardello: Ten Things I'd Like to Find on Pluto Ross Hamilton: Ten Things I'd Like to Find on Pluto College of the Atlantic Students: Ten Things I’d Like to Find on Pluto Jeffrey A. Hoffman: What the Probe Will Find, What I’d Like It to Find Nathan Schwartz-Salant: Ten Things I’d Like to Find on Pluto Charley B. Murphy: The Ten Worlds of Pluto Timothy Morton: Ten Things I’d Like to Find on Pluto & The End of the World Robert Phoenix: My Father Pluto Ellias Lonsdale: Pluto is the Reason We Have a Chance Rob Brezsny: Pluto: Planet of Wealth

Pluto Volume 1

If you want to help yourself and assist other in conscious evolution, rather than simply waiting for it to happen, this book is the essential map for that journey!

Author: Jeffrey Wolf Green

Publisher: The Wessex Astrologer

ISBN: 1910531049

Category: Body, Mind & Spirit

Page: 380

View: 670

Jeff Wolf Green's writing embodies everything you would expect from Pluto; intense, powerful, riveting, transformative and penetrating . If you want to help yourself and assist other in conscious evolution, rather than simply waiting for it to happen, this book is the essential map for that journey!

Healing Pluto Problems

The planet Pluto is naturally connected with the sign of Scorpio and with the
eighth house. These three categories have some common interest in such
matters as birth, sex, death, power and transformation. Power and how to deal
with it is a ...

Author: Donna Cunningham

Publisher: Weiser Books

ISBN: 9780877283980

Category: Philosophy

Page: 240

View: 330

Well-written and moving account of Pluto in the natal chart, and how Pluto aspects can affect childhood, adulthood, and life in general. Open discussion of child abuse, rape, incest, violence, repression, manipulative types and how they got thatway. Also included are ways to heal Pluto problems using flower remedies, meditation and more.


Briefly describes the discovery, surface features, orbit, moon, and efforts to study the dwarf planet Pluto.

Author: Dana Meachen Rau

Publisher: Capstone

ISBN: 9780756502973

Category: Juvenile Nonfiction

Page: 32

View: 349

Briefly describes the discovery, surface features, orbit, moon, and efforts to study the dwarf planet Pluto.

Uranus Neptune Pluto and the Outer Solar System

Unlike all the planets closer to the Sun, known since antiquity, the farthest reaches are discoveries of the modern world.

Author: Linda T. Elkins-Tanton

Publisher: Infobase Publishing

ISBN: 1438107293

Category: Astronomy

Page: 225

View: 112

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.


Explores the planet Pluto, including its atmosphere and composition, its early astronomical sightings, and its terrain.

Author: Michael D. Cole

Publisher: Enslow Pub Incorporated

ISBN: 9780766019539

Category: Juvenile Nonfiction

Page: 48

View: 846

Explores the planet Pluto, including its atmosphere and composition, its early astronomical sightings, and its terrain.


Ralph Winrich. Sun Pluto Axis Path around the Sun How Pluto Moves Pluto
travels around the Sun as it.

Author: Ralph Winrich

Publisher: Capstone

ISBN: 9780736851732

Category: Juvenile Nonfiction

Page: 24

View: 435

Discusses the orbit, atmosphere, surface features, and exploration of the planet Pluto.


When was Pluto discovered? Why isn't Pluto called a planet anymore? How long
does it take Pluto to travel around the Sun? What is Pluto made of? Does Pluto
have moons? How do scientists study Pluto? If the child has questions, don't ...

Author: Gregory L. Vogt

Publisher: Lerner Publications

ISBN: 0761357076

Category: Juvenile Nonfiction

Page: 48

View: 315

Learn about this fascinating planet in our Solar System.


Pluto's Elusive Atmosphere Pluto ' s climate and weather are mostly mysteries to
astronomers at this point . It will be years before they can even begin to know the
details of the planet's weather systems and climate trends to the extent that they ...

Author: Chris Hayhurst

Publisher: The Rosen Publishing Group

ISBN: 9781404201729

Category: Juvenile Nonfiction

Page: 48

View: 568

Presents scientific discoveries about the atmosphere, size, composition, surface, rotation, and orbit of the planet Pluto.

Uranus Neptune and Pluto

Pluto's orbit Neptune's orbit 1979 crossing 1980 1999 crossing paper and the
planets orbiting around it . Most of the planets orbit on this same imaginary piece
of paper , or the same plane . Pluto orbits in a different plane . Its orbit takes it far

Author: Robin Kerrod

Publisher: Lerner Publications

ISBN: 9780822539087

Category: Juvenile Nonfiction

Page: 32

View: 181

Describes the characteristics of the three most distant planets in the solar system--Uranus, Neptune, and Pluto.

The Dwarf Planet Pluto

Scientists believe that Charon was formed when something hit Pluto and broke
off chunks of the planet. These chunks eventually came together to make the
moon. Scientists think that Charon is most likely structured in one of two ways.

Author: Kristi Lew

Publisher: Marshall Cavendish

ISBN: 9780761445531

Category: Juvenile Nonfiction

Page: 64

View: 236

With its age-appropriate text, helpful charts, colorful design, and vivid illustrations and photography, this series is perfect for students working on reports and projects or for the budding astronomer fascinated by what exists beyond our planet.

Beyond Pluto

With comets arriving from all directions , including from above and below the
plane of the planets , the chances of crossing Jupiter's orbit just when the planet
happens to be there , Beyond Pluto and to do so close enough to the 19.

Author: John Davies

Publisher: Cambridge University Press

ISBN: 9781139428774

Category: Science

Page: 233

View: 509

In the ten years preceding publication, the known solar system more than doubled in size. For the first time in almost two centuries an entirely new population of planetary objects was found. This 'Kuiper Belt' of minor planets beyond Neptune revolutionised our understanding of the solar system's formation and finally explained the origin of the enigmatic outer planet Pluto. This is the fascinating story of how theoretical physicists decided that there must be a population of unknown bodies beyond Neptune and how a small band of astronomers set out to find them. What they discovered was a family of ancient planetesimals whose orbits and physical properties were far more complicated than anyone expected. We follow the story of this discovery, and see how astronomers, theoretical physicists and one incredibly dedicated amateur observer came together to explore the frozen boundary of the solar system.

Disney Mickey No Nap for Pluto

Will Pluto learn that we should all stop and take a rest when we feel sleepy? Read to the end and find out. This book includes more than 40 stickers of your favorite Mickey and Friends characters.

Author: Nancy Parent

Publisher: SFI Readerlink Dist

ISBN: 0794445268

Category: Juvenile Fiction

Page: 24

View: 856

Pluto wants to help Mickey with his chores, but he’s too tired to do anything right! Mickey and Pluto have been doing chores all day, and there are still a few more to do. But it’s naptime for Pluto. He's tired, but Pluto still wants to help and have fun. Unfortunately, he just makes a mess of things. Will Pluto learn that we should all stop and take a rest when we feel sleepy? Read to the end and find out. This book includes more than 40 stickers of your favorite Mickey and Friends characters.

Uranus Neptune and Pluto and How to Observe Them

(Larger instruments are needed for Pluto. This and other matters are described in
the next chapter.) This chapter starts with a description of the human eye,
followed by discussions on binoculars, telescopes, how to find Uranus and
Neptune in ...

Author: Richard Schmude, Jr.

Publisher: Springer Science & Business Media

ISBN: 9780387766027

Category: Science

Page: 232

View: 498

This book is for two groups of people: those who want to study the remote planets with amateur astronomical equipment, and those who are just interested in learning about our knowledge of the remote planets. The Remote Planets, and How to Observe them is unique in that it gives a completely up-to-date summary of our current knowledge of the remote planets, and also explains how amateur astronomers can contribute to our knowledge of the remote planets. Readers are given some inspiring examples of people who, with modest commercially-made equipment, have made important contributions to our scientific knowledge. The observational section goes into great detail, including optical and CCD photometry, occultation measurements, imaging (including stacking and enhancement techniques) and polarization measurements. There are finder charts (from 2010 to 2026), complete with two sets of star-magnitudes in an appendix (one set of magnitudes are for photoelectric photometry and the other set is for visual photometry)


Facts about Pluto Pluto is 3,670,000,000 miles ( 5,900,000,000 km ) from the Sun
. Pluto's diameter ( distance across ) is 1,430 miles ( 2,300 km ) . • Pluto orbits the
Sun in 248 years . • Pluto rotates in 6 days . • The average temperature on Pluto ...

Author: Margaret J. Goldstein

Publisher: Lerner Publications

ISBN: 9780822546566

Category: Juvenile Nonfiction

Page: 32

View: 115

An introduction to Pluto, describing its place in the solar system, its physical characteristics, its movement in space, and other facts about this outer planet.


The estimates of Pluto's diameter from the 2006 occultation have been discussed
in Section 3.1. The next stellar occultation was on 18 March 2007. Astronomers
obtained data using six observatories in the western USA, including the ...

Author: Barrie W. Jones

Publisher: Cambridge University Press

ISBN: 1139490222

Category: Science


View: 911

Orbiting at the edge of the outer Solar System, Pluto is an intriguing object in astronomy. Since the fascinating events surrounding its discovery, it has helped increase our understanding of the origin and evolution of the Solar System, and raised questions about the nature and benefits of scientific classification. This is a timely and exciting account of Pluto and its satellites. The author uses Pluto as a case study to discuss discovery in astronomy, how remote astronomical bodies are investigated, and the role of classification in science by discussing Pluto's recent classification as a dwarf planet. Besides Pluto, the book also explores the rich assortment of bodies that constitute the Edgeworth–Kuiper Belt, of which Pluto is the largest innermost member. Richly illustrated, this text is written for general readers, amateur astronomers and students alike. Boxed text provides more advanced information especially for readers who wish to delve deeper into the subject.

Pluto and Charon

University of California at Santa Cruz STANTON J. PEALE University of California
at Santa Barbara and ALAN W. HARRIS Jet Propulsion Laboratory Pluto and ...

Author: Alan Stern

Publisher: University of Arizona Press

ISBN: 9780816518401

Category: Science

Page: 728

View: 651

For five decades after its discovery in 1930, the planet Pluto remained an enigma. However, several events during the last two decades have helped to lift the veil of mystery surrounding the ninth planet. The discovery of its satellite, Charon, in 1978 permitted occultation observations that allowed scientists to determine the size of both bodies. Astronomers also detected the presence of an atmosphere, and the Hubble Space Telescope provided views in unprecedented detail. In addition to these two fortuitous events, advances in telescopic instrumentation and computational methods led to exciting observational and theoretical discoveries. This new Space Sciences Series volume focuses on the scientific issues associated with Pluto and Charon. Fifty collaborating authors here review the latest research on the Pluto-Charon binary, from bulk properties, surfaces and interiors to atmospheric structure, composition, and dynamics. They also provide historical perspectives on Pluto-Charon research and discuss the population of the trans-Neptunian region and the origin of the Pluto-Charon binary. Also included are prefatory remarks by Pluto's and Charon's discoverers, Clyde Tombaugh and James Christy. This volume offers the most comprehensive available compendium of research work for understanding these far off members of our solar system, just at a time following dramatic developments in our knowledge but before that knowledge can be advanced by spacecraft missions.