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山月 asked in 科學天文與太空 · 1 decade ago

九大行星或八大行星

2006年的 "國際天文學會" 雖然贊成將冥王星降為"矮行星".

但是當時美國天文學界強力提反對意見.

請問現在全世界的官方天文資料 都已經變更為"八大行星"了嗎?

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