There are eight planets in the solar system, and Mercury is the smallest. Pluto was once considered the ninth planet, but it was re-classified as a dwarf planet in 2006. This leaves us with eight planets, and of those, Venus is the second smallest.
The second smallest planet in the solar system is Mercury. It is slightly smaller than Earth’s moon and is only slightly larger than the dwarf planet Pluto. Mercury is unique in that it has a very thin atmosphere and is tidally locked, meaning that one side of the planet always faces the sun.
Credit: www.jpl.nasa.gov
What are the 2 Smallest Planets?
There are two smallest planets in our solar system and they are Mercury and Mars.
Mercury is the smallest and closest to the sun. It is only about a third the size of Earth and has a very thin atmosphere.
Mercury has no moons.
Mars is the second smallest planet. It is about half the size of Earth and has a thin atmosphere.
Mars has two small moons, Phobos and Deimos.
Is Mars the 2Nd Smallest Planet?
Mars is the fourth planet from the Sun and the second-smallest planet in the Solar System, after Mercury. In English, Mars carries a name of the Roman god of war, and is often referred to as the “Red Planet” because the reddish iron oxide prevalent on its surface gives it a reddish appearance that is distinctive among the astronomical bodies visible to the naked eye. Mars is a terrestrial planet with a thin atmosphere, having surface features reminiscent both of the impact craters of the Moon and the valleys, deserts and polar ice caps of Earth.
What is the 1Nd Smallest Planet?
There are many different ways to rank the planets in our solar system, but one common way is by size. In that case, the 1st smallest planet would be Mercury.
Mercury is the closest planet to the sun and is just a little over 3,000 miles in diameter.
That’s about 1/3 the size of Earth. Mercury is so small and close to the sun that it doesn’t have any moons.
Despite its small size, Mercury is a very interesting planet.
It has a very thin atmosphere and is covered in craters. Mercury also has the longest day of any planet. Because it is so close to the sun, Mercury’s day is 176 Earth days long!
What is the Second Smallest Planet 2021?
The second smallest planet in 2021 is Neptune. It has a diameter of only 49,244 kilometers, making it just slightly larger than Earth’s moon. Neptune is also the farthest planet from the sun, and it takes 164.8 years to complete one orbit.
Despite its small size, Neptune is one of the most interesting planets in our solar system. It has an eerie blue color, caused by the methane in its atmosphere, and it has a series of large dark spots on its surface. It also has the strongest winds of any planet in the solar system, reaching speeds of up to 2,100 kilometers per hour.
What is the smallest planet in our solar system?
What is the First Smallest Planet
The first smallest planet is Mercury. It is the closest planet to the sun and completes one orbit around the sun in just 88 days. Mercury is only slightly larger than our moon with a diameter of 3,031 miles.
It has a very thin atmosphere consisting of oxygen, sodium, and hydrogen. Mercury has no moons.
Which is the Smallest Planet in the Solar System
There are many planets in our solar system, but which one is the smallest? That would be Mercury! Mercury is the smallest planet in our solar system, and is also the closest planet to the sun.
It has a diameter of just 3,031 miles, which is about a third of the size of Earth. Mercury is so small that it is only slightly larger than our moon! Even though it is small, Mercury is a very interesting planet.
It has a very thin atmosphere and is covered in craters. It is also the only planet in our solar system that has no moons!
Is Mars the Second Smallest Planet
There’s a lot of debate over which is the second smallest planet in our solar system. The two contenders are Mercury and Mars. So, which is it?
Let’s start with a bit of background. Mercury is the closest planet to the sun. It’s also the smallest planet in our solar system.
Mars is the fourth planet from the sun. It’s about half the size of Earth.
Now, let’s compare the two.
Mercury is about 3,031 miles in diameter. Mars is about 4,217 miles in diameter. That means that Mars is about 38% larger than Mercury.
So,Mars is the second smallest planet in our solar system.
Largest Planet in the Solar System
The largest planet in the solar system is Jupiter. It is more than twice the size of all the other planets combined. Jupiter is so large that it could fit 1,300 Earths inside of it.
It is made up mostly of hydrogen and helium. Jupiter has a very strong magnetic field and is covered in clouds. It has more than 60 moons.
Conclusion
The second smallest planet in the solar system is Mercury. It is also the closest planet to the sun. Mercury is a rocky planet with a thin atmosphere.
It has a day length of just under 59 Earth days. Mercury is named after the Roman god of commerce and travel.