Spitzer Spies a Planet

For this post we will be looking at the star 55 Cancri
Credit: SDSS
and a slightly less gaudy version after some calibration by your’s truly
Original data credit: SDSS Calibration: Peter Clark
Background
55 Cancri is located reasonably to close to the Earth at just 40.3 light years (+/- 0.3ly) in the direction of the Zodiacal constellation Cancer – The Crab. The system is actually a gravitationally bound, detached binary with the bright primary star – 55 Cancri A – separated from its much dimmer partner – 55 Cancri B – by a distance of 1065 AU (nearly 99 billion miles!).
The primary star is about 95% the mass of Sol and is thus slightly cooler and dimmer (though it can be viewed from Earth by the naked eye with clear very dark skies) whilst the secondary is a cool red dwarf only 13% the mass of Sol and only 0.76% as bright (and is thus only visible through a telescope).
The primary star has nearly double the amount of iron content (186% to be exact) compared to Sol classing it as a rare “super metal-rich” or SMR (with an astronomical metal being any element other than hydrogen and ...