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In astronomy, a resonant trans-Neptunian object is a trans-Neptunian object (TNO) in mean-motion orbital resonance with Neptune. The orbital periods of the resonant objects are in a simple integer relations with the period of Neptune e.g. 1:2, 2:3 etc. Resonant TNOs can be either part of the main Kuiper belt population, or the more distant scattered disc population.〔Hahn J. Malhotra R.''Neptune's migration into a stirred-up Kuiper Belt'' The Astronomical Journal, 130, pp.2392-2414, Nov.2005.(Full text on arXiv ).〕 ==Distribution== The diagram illustrates the distribution of the known trans-Neptunian objects. Resonant objects are plotted in red. Orbital resonances with Neptune are marked with vertical bars; 1:1 marks the position of Neptune’s orbit and its trojans, 2:3 marks the orbit of Pluto and plutinos, and 1:2, 2:5 etc. mark a number of smaller families. The designation ''2:3'' or ''3:2'' both refer to the same resonance for TNOs. There is no ambiguity, because TNOs have, by definition, periods longer than Neptune. The usage depends on the author and the field of research. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Resonant trans-Neptunian object」の詳細全文を読む スポンサード リンク
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