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English

In the 19th century astronomers began to realize that recently discovered bodies that had been classified as planets for almost half a century (such as Ceres, Pallas, Juno, and Vesta) were very different from the traditional ones.

Indonesian

Pada abad ke-19, para astronom mulai menyadari bahwa benda-benda baru yang sebelumnya dikelompokkan sebagai planet selama nyaris setengah abad (seperti Ceres, Pallas, dan Vesta) justru jauh berbeda daripada planet tradisional.