Super Earth' planet likely made of diamond

The video discusses 55 Cancri E, a planet orbiting a star in the Cancer constellation. It has a radius twice that of Earth and a mass eight times greater. The planet is believed to be covered in graphite, with a significant portion of its mass potentially made of diamond. Due to its proximity to its star, 55 Cancri E has a surface temperature of 3900°F and completes an orbit in just 18 hours. It is one of five planets in its solar system.

What is the surface temperature of 55 Cancri e?

How long does it take for 55 Cancri e to complete one orbit around its star?