Finding a planet's mass from its orbit without a satellite

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fredrick08
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Homework Statement


Hi I am doing a report for a space science class, and i have a theoretical planet that orbits a star 1.07solarM 1.05solarR 6000K, then planet is distance 1.08AU, a period of 400days, temp of 12.85degC and radius of 1.98earthM... Is it at all possible to find the planets mass!? if i don't have an orbiting satellite? if so could you tell me the formula, i can't find one anywhere...
 

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