Mercury

Mercury is the closest planet to the Sun and is also the smallest in our Solar System. It is also considered to be a rocky or terrestrial planets and its interior composition is said to be similar to that of our own planet. The planet’s core is actually made up of liquid metal which is […]

Mercury is the smallest planet in the Solar System. Its radius is a mere 2,439.7 km. It is so small that the moons of other planets such as Ganymede and Titan are larger than Mercury. Despite being the smallest planet in the Solar System, Mercury is denser than any of the larger gas giants such

Texts and descriptions are fine and dandy, but to see planet Mercury for what it is is another thing altogether. Enjoy these pictures of Mercury.    

Mass (kg): 3.3 x 1023 Diameter (km): 4879.4 Mean density (kg/m3): 5420 Escape velocity (m/s): 4300 Average distance from Sun: 0.387 AU* (57,909,175 km) Rotation period (length of day in Earth days): 58.65 Revolution period (length of year in Earth days): 87.97 Obliquity (tilt of axis degrees): 0 Orbit inclination (degrees): 7 Orbit eccentricity (deviation

1. Mercury is the smallest planet in the Solar System. 2. The orbital speed of Mercury is 47.8 km/sec (29.7 miles/sec). 3. Mercury has no atmosphere and no known satellites, perhaps because of its proximity to the Sun. 4. The diameter of Planet Mercury is 4,878 km (3,031 miles). 5. The first visit to Mercury