dwarf planet n. 矮行星;侏儒行星
- Also located in this area, but far beyond the range of amateur telescopes, is the dwarf planet Eris.
同时,也在这片区域,但却不能用业余望远镜观测到的是矮行星阋神星。 - The only other known example of such an oddly angled orbit was Pluto, until its demotion to dwarf planet status.
唯一的另一个已知的以如此奇怪的角度运行的例子是冥王星,直到它降级为矮行星。 - In 1930, astronomer Clyde Tombaugh discovered the dwarf planet Pluto while looking at photographs of the night sky.
1930年,天文学家克莱德•汤博在查看夜晚的星空图时发现了矮行星——冥王星。
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