Explanation: Has a tenth planet been discovered? A newly discovered object, designated 2003 UB₃₁₃ and located more than twice the distance of Pluto, is expected to be at least as large as Pluto and probably larger, given current measurements. 2003 UB₃₁₃'s dimness and highly tilted orbit (44 degrees) prevented it from being discovered sooner. Many astronomers speculate that numerous other icy objects larger than Pluto likely exist in the Kuiper Belt of the far distant Solar System. If so, and if some are found closer in than 2003 UB₃₁₃, it may be premature to call 2003 UB₃₁₃ the tenth planet. Illustrated above is an artist's drawing showing what 2003 UB₃₁₃ might look. The unusually bright star on the right is the Sun. Much of the world eagerly await the decision by the International Astronomical Union on whether 2003 UB₃₁₃ will be designated a planet or given a name without subscripts.

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Authors & editors: Robert Nemiroff (MTU) & Jerry Bonnell (USRA)
NASA Web Site Statements, Warnings, and Disclaimers
NASA Official: Jay Norris. Specific rights apply.
A service of: LHEA at NASA / GSFC
& Michigan Tech. U.

Publikacii s klyuchevymi slovami: planet - Pluto - kuiper belt - planety - Pluton - Poyas Koipera Publikacii so slovami: planet - Pluto - kuiper belt - planety - Pluton - Poyas Koipera
Sm. takzhe: Istinnye cveta Plutona Na severe Plutona Sledy planet Solnechnoi sistemy S dobrym utrom, planety! Planety vystroilis' nad mostom v N'yu-'orke Pluton noch'yu Tri planety i kometa Vse publikacii na tu zhe temu >>