41 light years away from the constellation Cancer, 55 Cancri is 7.8 times the mass of the earth and revolves around its sun-like star once in the 17.7 hours, which means it is so close to the parent the surface temperature a sultry 2.709 K (2.436 ° C; 4.417 ° F) – hot enough to easily melt iron. To detect the planet, ASTERIA had to be able to measure a dip in the star's brightness of 0.04 percent.
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