Nibiru is an theorethical planet with about 7-8 jupiter diameters. Due to that size, it would be hot as nuclear fusion would occur in its core, heating the planet.
planet
Comments
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Cool red effect!
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Nickel-Bismuth-Ruthenium.
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SpaceX + 1
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Solar System Exploration 2
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not really a sun, it has little mass so no main-sequence
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stop mars
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did stand a chance against the sun is a deadly laser
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nimbus +1
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Abacaxi A. abaxi +1
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basically a sun.