55 Cancri is a system of two stars which are orbiting ... "Astronomers believe there are 5 planets orbiting star A. In order of distance out from star A, the planets are: e, b,c, f and d.

One of them, called 55 Cancri e, is basically hell ... 0.25 is a quarter of the way around, 0.5 is when it’s directly behind the star, and 1 is when it’s back in front of the star again.

The newly-found fifth planet around 55 Cancri is also large - around half the size of Saturn, or at least 45 times the mass of Earth - and orbiting at about 0.785 AU in 260.8 days. Because the ...

The so-called super Earth — known as 55 Cancri e — is among the few rocky planets outside our solar system with a significant atmosphere, wrapped a blanket of carbon dioxide and carbon monoxide.