Planet Nine Discovered in Infrared

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Planet Nine

Space

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Science

Evidence of controversial Planet 9 uncovered in sky surveys taken 23 years apart

Summary

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83% Informative

The best candidate yet for the elusive Planet Nine has been spotted in two deep infrared surveys taken 23 years apart.

If this mystery object really is Planet Nine , it would have a mass greater than Neptune , and currently be about 700 times farther from the sun than Earth is.

The expectation is that Planet Nine would appear brighter in mid and far-infrared light than it would in visible light.

Astronomers have found a candidate for Planet Nine in infrared data.

The object, if it really is Planet Nine , must be more massive than Neptune .

If it is real, it could be as close as 280 AU and as distant as 1,120 AU.

Planet Nine formed closer to the sun, perhaps near the region where Jupiter , Saturn , Uranus and Neptune formed, says Phan.

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formal

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English