486958 Arrokoth,[a] provisional designation 2014 MU69, is a trans-Neptunian object located in the Kuiper belt. It is a contact binary 36 km (22 mi) long, made of two planetesimals 21 km (13 mi) and 15 km (9 mi) across, nicknamed "Ultima" and "Thule". The New Horizons team use this classical pronunciation, the pseudo-Latin pronunciation // TOO-lay, and the hybrid pronunciation // TOO-lee. The surface is made of pale red tholins, formed due to the surface being exposed to UV light.
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