Is Pluto a planet? : a historical journey through the solar system /
Weintraub, David A.(David Andrew),1958-
Princeton, N.J. ; Oxford : Princeton University Press,
c2007.
Includes bibliographical references (p. 243-248) and index.
1. What is a planet? -- 2. Seven perfect planets made of aether -- 3. The Earth becomes a planet -- 4. Sixteen planets -- 5. Not everything that orbits the Sun is a planet -- 6. Uranus! -- 7. The celestial police -- 8. Neptune, the thirteenth planet -- 9. Easy come, easy go -- 10. Pluto, the fourth ninth planet -- 11. Hidden secrets of the outer solar system -- 12. The plutinos -- 13. Is Pluto a planet? -- 14. Goldilocks -- Postscript. Current thoughts by other astronomers -- Appendix. What we know about Pluto.
Planets.