A Trans-Neptunian object (TNO) is any object in the solar system that has an orbit beyond that of Neptune. The Kuiper belt and Oort cloud are names for some subdivisions of that volume of space. Pluto is a trans-Neptunian object, and if it had been discovered today, it might not have been called a planet. Another of the named trans-Neptunian Objects is Varuna. In July 2001 a new object "2001 KX76" half the size of Pluto was discovered. In October 2002 an object larger than "2001 KX76" was discovered, it is named Quaoar.
Gravity, the attracting force between all matter, also attracts planets. Due to the changes in the orbits of the known planets in the early 1900s, it was assumed that there was one or more planets beyond Neptune, but not yet identified. This search for these led to the discovery of Pluto, and since then a few other significant objects have been found. These are still too small to explain the perturbations, though, and revised estimates of Neptune's mass showed that the problem was fictitious.
Some kinds of TNOs: Plutinos, cubewanos.
Transneptunian objects of note:
External links
- University of Arizona (http://seds.lpl.arizona.edu/nineplanets/nineplanets/kboc.html)
- Scientific American magazine (http://www.sciam.com/0596issue/0596jewitt.html)
Common misspelling and questions (FAQ)
rans-neptunian-objects tans-neptunian-objects trns-neptunian-objects tras-neptunian-objects tran-neptunian-objects transneptunian-objects trans-eptunian-objects trans-nptunian-objects trans-netunian-objects trans-nepunian-objects trans-neptnian-objects trans-neptuian-objects trans-neptunan-objects trans-neptunin-objects trans-neptunia-objects trans-neptunianobjects trans-neptunian-bjects trans-neptunian-ojects trans-neptunian-obects trans-neptunian-objcts trans-neptunian-objets trans-neptunian-objecs trans-neptunian-object rtans-neptunian-objects tarns-neptunian-objects trnas-neptunian-objects trasn-neptunian-objects tran-sneptunian-objects transn-eptunian-objects trans-enptunian-objects trans-npetunian-objects trans-netpunian-objects trans-neputnian-objects trans-neptnuian-objects trans-neptuinan-objects trans-neptunain-objects trans-neptunina-objects trans-neptunia-nobjects trans-neptuniano-bjects trans-neptunian-bojects trans-neptunian-ojbects trans-neptunian-obejcts trans-neptunian-objcets trans-neptunian-objetcs trans-neptunian-objecst trans-neptunian-object ttrans-neptunian-objects trrans-neptunian-objects traans-neptunian-objects tranns-neptunian-objects transs-neptunian-objects trans--neptunian-objects trans-nneptunian-objects trans-neeptunian-objects trans-nepptunian-objects trans-nepttunian-objects trans-neptuunian-objects trans-neptunnian-objects trans-neptuniian-objects trans-neptuniaan-objects trans-neptuniann-objects trans-neptunian--objects trans-neptunian-oobjects trans-neptunian-obbjects trans-neptunian-objjects trans-neptunian-objeects trans-neptunian-objeccts trans-neptunian-objectts trans-neptunian-objectss 5rans-neptunian-objects rrans-neptunian-objects frans-neptunian-objects 6rans-neptunian-objects grans-neptunian-objects 6rans-neptunian-objects yrans-neptunian-objects grans-neptunian-objects t4ans-neptunian-objects teans-neptunian-objects tdans-neptunian-objects t5ans-neptunian-objects tfans-neptunian-objects t5ans-neptunian-objects ttans-neptunian-objects tfans-neptunian-objects trqns-neptunian-objects trwns-neptunian-objects trzns-neptunian-objects trwns-neptunian-objects trsns-neptunian-objects trzns-neptunian-objects trahs-neptunian-objects trabs-neptunian-objects trajs-neptunian-objects trajs-neptunian-objects trams-neptunian-objects tranw-neptunian-objects trana-neptunian-objects tranz-neptunian-objects trane-neptunian-objects tranx-neptunian-objects trane-neptunian-objects trand-neptunian-objects tranx-neptunian-objects trans0neptunian-objects transpneptunian-objects trans[neptunian-objects trans-heptunian-objects trans-beptunian-objects trans-jeptunian-objects trans-jeptunian-objects trans-meptunian-objects trans-n3ptunian-objects trans-nwptunian-objects trans-nsptunian-objects trans-n4ptunian-objects trans-ndptunian-objects trans-n4ptunian-objects trans-nrptunian-objects trans-ndptunian-objects trans-ne0tunian-objects trans-neotunian-objects trans-neltunian-objects trans-ne-tunian-objects trans-ne;tunian-objects trans-ne-tunian-objects trans-ne[tunian-objects trans-ne;tunian-objects trans-nep5unian-objects trans-neprunian-objects trans-nepfunian-objects trans-nep6unian-objects trans-nepgunian-objects trans-nep6unian-objects trans-nepyunian-objects trans-nepgunian-objects trans-nept7nian-objects trans-neptynian-objects trans-nepthnian-objects trans-nept8nian-objects trans-neptjnian-objects trans-nept8nian-objects trans-neptinian-objects trans-neptjnian-objects trans-neptuhian-objects trans-neptubian-objects trans-neptujian-objects trans-neptujian-objects trans-neptumian-objects trans-neptun8an-objects trans-neptunuan-objects trans-neptunjan-objects trans-neptun9an-objects trans-neptunkan-objects trans-neptun9an-objects trans-neptunoan-objects trans-neptunkan-objects trans-neptuniqn-objects trans-neptuniwn-objects trans-neptunizn-objects trans-neptuniwn-objects trans-neptunisn-objects trans-neptunizn-objects trans-neptuniah-objects trans-neptuniab-objects trans-neptuniaj-objects trans-neptuniaj-objects trans-neptuniam-objects trans-neptunian0objects trans-neptunianpobjects trans-neptunian[objects trans-neptunian-9bjects trans-neptunian-ibjects trans-neptunian-kbjects trans-neptunian-0bjects trans-neptunian-lbjects trans-neptunian-0bjects trans-neptunian-pbjects trans-neptunian-lbjects trans-neptunian-ogjects trans-neptunian-ovjects trans-neptunian-ohjects trans-neptunian-ohjects trans-neptunian-onjects trans-neptunian-obuects trans-neptunian-obhects trans-neptunian-obnects trans-neptunian-obiects trans-neptunian-obmects trans-neptunian-obiects trans-neptunian-obkects trans-neptunian-obmects trans-neptunian-obj3cts trans-neptunian-objwcts trans-neptunian-objscts trans-neptunian-obj4cts trans-neptunian-objdcts trans-neptunian-obj4cts trans-neptunian-objrcts trans-neptunian-objdcts trans-neptunian-objedts trans-neptunian-objexts trans-neptunian-objefts trans-neptunian-objefts trans-neptunian-objevts trans-neptunian-objec5s trans-neptunian-objecrs trans-neptunian-objecfs trans-neptunian-objec6s trans-neptunian-objecgs trans-neptunian-objec6s trans-neptunian-objecys trans-neptunian-objecgs trans-neptunian-objectw trans-neptunian-objecta trans-neptunian-objectz trans-neptunian-objecte trans-neptunian-objectx trans-neptunian-objecte trans-neptunian-objectd trans-neptunian-objectx trans-neptunyan-objects yrans-neptunian-objects tyrans-neptunian-objects trans-neptunian-objectesGutenberg, including how to donate, how to help produce our new Those of you who want to download any eBook before announcement also a good way to get them instantly upon announcement, as the announcement goes out in the Project Gutenberg Newsletter. http://www.ibiblio.org/gutenberg/etext03 or as it appears in our Newsletters. time it takes us, a rather conservative estimate, is fifty hours searched and analyzed, the copyright letters written, etc. Our per text is nominally estimated at one dollar then we produce $2 files per month: 1240 more eBooks in 2001 for a total of 4000+ If they reach just 1-2% of the world's population then the total This is ten thousand titles each to one hundred million readers, 10 1991 January 1000 1997 August 2000 1999 December 3000 2001 November 6000 2002 December* 10000 2004 January* to secure a future for Project Gutenberg into the next millennium. We need your donations more than ever! As of February, 2002, contributions are being solicited from people Delaware, District of Columbia, Florida, Georgia, Hawaii, Illinois, Michigan, Mississippi, Missouri, Montana, Nebraska, Nevada, New Oklahoma, Oregon, Pennsylvania, Rhode Island, South Carolina, South .