词汇 | dwarf-planet |
释义 | dwarf planet noun[ C ] uk /ˈdwɔːf ˌplæn.ɪt/ us /ˈdwɔːrf ˌplæn.ɪt/ a round mass of metal and rock or gas, moving around the Sun or another star, that is not large enough to be considered a planet. Dwarf planets in the solar system include Ceres, Pluto, and Eris.矮行星 Astronomy albedo Andromeda Aquarius Aries asteroid galaxy Gemini geostationary geosynchronous gibbous observatory orbit orbital Orion penumbra substellar sunspot supergiant supermassive supermoon Instead, it is now called a dwarf planet, which means a small planet. |
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