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Q&A What are the possibilities of a dwarf planet orbiting opposite Earth's orbit?

I am drafting a short story about a small object orbiting the Sun at the precise 'speed' as Earth's opposite the Sun, undiscovered by us due to its position. The problems I see with this include t...

9 answers  ·  posted 10y ago by Mikey‭  ·  last activity 6y ago by Mikey‭

Question planets orbital-mechanics solar-system earth counter-earth