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Planetesimals to brown dwarfs: What is a planet?

Basri, Gibor and Brown, Michael E. (2006) Planetesimals to brown dwarfs: What is a planet? Annual Review of Earth and Planetary Sciences, 34 . pp. 193-216. ISSN 0084-6597. doi:10.1146/

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The past 15 years have brought about a revolution in our understanding of our Solar System and other planetary systems. During this time, discoveries include the first Kuiper belt objects (KBOs), the first brown dwarfs, and the first extrasolar planets. Although discoveries continue apace, they have called into question our previous perspectives on planets, both here and elsewhere. The result has been a debate about the meaning of the word "planet" itself. It is clear that scientists do not have a widely accepted or clear definition of what a planet is, and both scientists and the public are confused (and sometimes annoyed) by its use in various contexts. Because "planet" is a very widely used term, it seems worth the attempt to resolve this problem. In this essay, we try to cover all the issues that have come to the fore and bring clarity (if not resolution) to the debate.

Item Type:Article
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URLURL TypeDescription Paper
Brown, Michael E.0000-0002-8255-0545
Additional Information:© 2006 by Annual Reviews. First published online as a Review in Advance on January 16, 2006.
Subject Keywords:extrasolar planets, Kuiper belt, defining planets, substellar objects, cosmogony, new planets
Record Number:CaltechAUTHORS:BASareps06
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Official Citation:PLANETESIMALS TO BROWN DWARFS: What is a Planet? Gibor Basri and Michael E. Brown. Annual Review of Earth and Planetary Sciences 2006 34:1, 193-216; doi: 10.1146/
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:5028
Deposited By: Archive Administrator
Deposited On:22 Sep 2006
Last Modified:08 Nov 2021 20:22

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