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Problem 1: The orbital period of Mars is 1.881 yrs. When Mars is ...

Problem 1: The orbital period of Mars is 1.881 yrs. When Mars is ...

Problem 1: The orbital period of Mars is 1.881 yrs. When Mars is ...

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<strong>Problem</strong> 4 cont.: In 1995 the first planet detected by the radial velocity technique was<br />

that around the star 51 Peg. <strong>The</strong> velocity amplitude was measured to be 60m/s<br />

and the <strong>period</strong> <strong>is</strong> 4.2days. Assuming the orbit <strong>is</strong> edge–on and that host star has<br />

the same mass as the Sun estimate (i) the mass <strong>of</strong> the planet (give your answer in<br />

Jupiter masses) and (ii) the radius <strong>of</strong> the orbit in Astronomical Units.

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