The newly discovered object, 2017 OF201, has a diameter of 435 miles (700 kilometers), making it smaller than Pluto, which measures around 1,477 miles (2,377 kilometers).

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2017 OF201 is about one-third the size of Pluto, which was reclassified as a dwarf planet in August 2006, and "is likely large enough to qualify as a dwarf planet, and its orbit is extremely wide ...

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The researchers said 2017 OF201 was identified in observations by telescopes in Chile and Hawaii spanning seven years. "It is potentially large enough to qualify as a dwarf planet.

The team has named the celestial body 2017 OF201. Researchers say a new planet was discovered beyond Neptune. (NASA/JPL-Caltech/Sihao Cheng et al, Jiaxuan Li and Sihao Cheng/CNN/CNN Newsource) ...