General relativity is necessary to explain its obs
General relativity is necessary to explain its observed orbital precession of forty-three arc-seconds per century. It has a thin sodium- potassium atmosphere and is both the only planet besides Earth with a magnetic field and the planet with the closest average density to that of Earth. For 10 points—identify the second-hottest planet in the solar system.
General relativity is necessary to explain its observed orbital precession of forty-three arc-seconds per century.
{Mercury}