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(514107) 2015 BZ509
June 1 , 2018
2368 days
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- Scientists have discovered an asteroid named (514107) 2015 BZ509 nestling in Jupiter’s orbit that had migrated from another star system.
- It makes it first known permanent immigrant to our solar system.
- All of the planets in our Solar System, and the vast majority of other objects as well travel around the Sun in the same direction.
- However, 2015 BZ509 is different – it moves in the opposite direction in what is known as a ‘retrograde’ orbit.
- The asteroid Oumuamua was actually first discovered in 2014, but after four years of tracking it, scientists were able to determine that it had arrived in our solar system some 4.5 billion years ago – just as Earth was beginning to form.
- However, it was just a tourist passing through, whereas this former exo-asteroid – given the catchy name (514107) 2015 BZ509 – is a long-term resident.
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