Essay
The star 55 Cancri has a triple planetary system.From exoplanets.org,we find that the orbital period of the of the third,outermost planet (55 Cancri d)is 5360 days = 14.7 years.It produces a velocity offset in the star of 49.3 m/s.The star itself is spectral type G8V with mass 0.95 MSᵤn.Calculate the orbital distance and mass of 55 Cancri d.
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