Mercury

-is the closest planet to the Sun. Mercury is slightly smaller in diameter than the moons Ganymede and Titan but more than twice as massive.

Planet Profile

orbit: 57,910,000 km (0.38 AU) from Sun
diameter: 4,880 km
moons:0

More Information

Mercury is named after the fast, wing-footed god in roman mythology who served as the messenger of all the gods since Mercury is fast like the said roman god.
Mercury has a small magnetic field whose strength is about 1% of Earth's. Mercury has no known satellites.Mercury is often visible with binoculars or even the unaided eye, but it is always very near the Sun and difficult to see in the twilight sky.