For every two orbits, of the sun, which takes around 88 Earth days, Mercury completes three rotations on it's axis. My planet's name is Mercury. It is named after the Roman god named Mercury who was also the ancient Greek's messenger named Hermes. Mercury is the closest planet to the sun and it is 57 million km from the sun at the farthest. Mercury's orbit is 88 Earth days and Mercury's rotation period is about 59 Earth days. Mercury is 4,879 km wide. Mercury's gravity is 3.7 m/s and a 100 pound person would only weigh 37.8 pounds. Mercury's orbit only takes 24% as long as Earth's orbit. Mercury's composition is 70% metals and 30% silicate material, Mercury's atmosphere is very thin. Mercury's temperature is 801 F and 427 C and it is the closest planet to the sun so it is hotter then any other planet. Mercury is one million trillion times hotter than Earth. Mercury is classified as a terrestrial planet which means it is rocky. Mercury looks a little bit like Earth's moon because it is covered with craters caused by space rock impacts. Mercury has no moons or rings because the planet is fairly close to the sun and the sun's strong gravity would interfere with anything in orbit around Mercury and Venus. A human would not to be able to fare on Mercury because it would be too hot or too cold. Also Mercury has no atmosphere. Mercury is the smallest planet in the solar system, every seven years you can see Mercury from Earth.