Sites discussing whether Pluto should be properly considered a planet, a Kuiper Belt object, or some other form of Trans-Neptunian Object (TNO).
In 1999 the International Astronomical Union announced that it was premature to consider removing the "planet" label from Pluto, but as more TNOs are discovered, the debate may be re-opened. For example, a TNO larger than Pluto, 2003 UB313, was announced in 2005.
More information
Related categories 2
Sites 8
Article discussing possible definitions that qualify objects, such as Pluto and Sedna in the Kuiper Belt, as being planets or not.
Discusses related discoveries and excerpts.
Argues that Pluto is the most important Kuiper Belt object, not the least important planet, based on its orbit and other properties. From astronomer Dave Jewitt, who studies comets and other primitive solar system bodies.
Reviews newly-discovered objects that stretch the definition of the term, including massive superjupiters, free-floating planets, and other exoplanets. Suggests a definition based on the way an object is formed. From astronomer Gibor Basri.
Articles discusses the debate whether Pluto should be included among the planets. [Atlantic Monthly]
The International Astronomical Union's definition of a planet in the Solar System and ruling on the classification of Pluto.
[PDF] (August 24, 2006)
Washington Post article describes Michael Brown's disagreement with a proposal to expand the definition of a planet to include, among others, his own discovery.
(August 19, 2006)
Outlines the history of the debate.
(February 14, 2005)
Discusses related discoveries and excerpts.
Reviews newly-discovered objects that stretch the definition of the term, including massive superjupiters, free-floating planets, and other exoplanets. Suggests a definition based on the way an object is formed. From astronomer Gibor Basri.
Articles discusses the debate whether Pluto should be included among the planets. [Atlantic Monthly]
Argues that Pluto is the most important Kuiper Belt object, not the least important planet, based on its orbit and other properties. From astronomer Dave Jewitt, who studies comets and other primitive solar system bodies.
Article discussing possible definitions that qualify objects, such as Pluto and Sedna in the Kuiper Belt, as being planets or not.
The International Astronomical Union's definition of a planet in the Solar System and ruling on the classification of Pluto.
[PDF] (August 24, 2006)
Washington Post article describes Michael Brown's disagreement with a proposal to expand the definition of a planet to include, among others, his own discovery.
(August 19, 2006)
Outlines the history of the debate.
(February 14, 2005)
Last update:
December 7, 2018 at 6:15:10 UTC
Check out
Society: Religion and Spirituality: Buddhism: Lineages: Theravada: Centers: Australia
- Recently edited by merlin1
- Recently edited by merlin1