The Extrasolar Planets Encyclopedia lists the mass of 55 Cancri A as 1.03 solar masses. But if you calculate the mass of the star using the parameters of the planet's orbits, you 0.94 solar masses. The only exception to this is 55 Cnc e, whose orbital parameters suggest a mass of 0.92 solar masses.
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Caps Lock: Cruise control for 'Cool'!