Mars, with a diameter 0.53226 times that of the Earth.
The planet with a diameter closest to this value is Uranus, which has a diameter of 31,763 miles.
Allfour inner planets: Mercury, Venus, Earth and Mars.
Mars, the second-smallest planet, has a diameter of just 6,788 km and the smallest planet, Mercury, has a diameter of 4,880 km, less than 2,000 km smaller than Mars. So it would take 1.34 mercury's to equal the diameter of Mars.
Mercury is the smallest planet, so there isn't one with half the diameter.
5,000,000 of them.
The smallest planet in our Solar System is Mercury. The second-smallest is Mars, which has MORE than half of Earth's diameter.
Mercury, Venus and Mars are smaller that Earth.All dwarf planets are also smaller.pluto is a lot less in diameter
The force due to gravity of a planet is dependent on the mass of that planet (and to a lesser extent the radius/diameter). If a planet is less massive then it will have a lower gravitational force.
The smallest planet in our Solar System is Mercury. The second-smallest is Mars, which has MORE than half of Earth's diameter.
Mercury. It has a diameter of around 4880km, while Earths diameter is 12104 km on average.
Only Mercury (Pluto also was in there, but it's now a "minor planet).
Mercury
Mercury. It has a diameter of around 4880km, while Earths diameter is 12104 km on average.
Mars, with a diameter 0.53226 times that of the Earth.
The planet with a diameter closest to this value is Uranus, which has a diameter of 31,763 miles.
Allfour inner planets: Mercury, Venus, Earth and Mars.