From :- Sky & Telescope By :- David L. Chandler Edited by :- Amal Udawatta Image showing the current location of Pluto, Neptune, and 2017 OF 201 . Jiaxuan Li and Sihao Cheng A newly discovered object in the outer solar system, 2017 OF201, is the largest found in more than a decade. It was hiding in plain sight, lurking deep inside terabytes of publicly available data, some of which are more than a decade old. But this particular needle in a haystack — the first new dwarf planet in the outer solar system to be found in more than a decade — took months of computational work to ferret out from the mass of background stars and noise. The newfound object, which for now bears the unwieldy name of 2017 OF 201 , is approximately 700 kilometers (400 miles) wide and follows an extremely elliptical orbit around the Sun that takes an estimated 25,000 years to complete. Its size puts it in the category of dwarf planets, along with Pluto, the asteroid Ceres, and other objects. It’s on...