Mercury is the smallest and innermost planet in the Solar System. It is tidally locked with the Sun which means it’s one side is always facing towards the sun. Its orbit around the Sun takes 87.97 days and completes one rotation on its axis in around 58 days.
Mass: 3.3011×10^23 kg
Radius: 2439 Km
Density: 5.427 g/cm^3
Escape Velocity: 4.25 km/sec
Gravity: 3.7 m/s^2 (0.38 X Earth)
Distance from Sun: 58.2 Million km (3.23 light minutes)