The ‘anti-Pluto’ label arose from the fact that the orbit of probable dwarf planet Orcus looks like a mirror-image of that of Pluto (as shown above), and is less than three years shorter than Pluto’s 248 years. It also has its own relatively large moon – or binary neighbour – just like Pluto. [More details … Continue reading Orcus – the anti-Pluto
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