Table of Contents
Are you curious about the number of planets in our solar system? Well, here is a list of all the known planets and their associated numbers. Keep in mind that there may be more planets out there that we haven’t discovered yet. So please keep checking back for updates!
Mercury
Mercury is the closest planet to the sun, and it’s also the most difficult to see. It never goes below the horizon, so it’s often missed when people are looking at stars or in pictures. However, Mercury is very important because it’s extremely close to the sun and it has a lot of features that are different from other planets. For example, it has no atmosphere, which means that it doesn’t have water or any other gases.
Venus
Venus is the only planet in the solar system that isn’t an Earth-like planet. It’s made mostly of carbon dioxide, which makes it very hot and unable to support life as we know it. However, there are some scientists who believe that Venus may have once been an Earth-like planet. This is because, like Earth, it has a magnetic field and a moon that orbits it.
Earth
There are known to be at least 1011 planets in the Milky Way galaxy alone, and there could be many more that have yet to be discovered. Many scientists believe that there may be as many as 100 billion planets in our galaxy alone, making it seem like there are plenty of potential homes for intelligent life. However, just because a planet appears to be habitable doesn’t mean that any kind of life would or could exist on it. Conditions must be right for water to exist on a planet’s surface, for example, and it remains unknown whether any other form of life exists beyond our own planet.
Mars
The red planet, Mars, is one of the many planets in our solar system. It has a diameter of about 9,800 miles and a mass of about 6.5 Earth masses. Mars has two moons, Phobos and Deimos, which were discovered in 1877 by an American astronomer, Asaph Hall.
Jupiter
Jupiter is the largest planet in the solar system by mass and has the largest atmosphere of any planet in the solar system. The planet Jupiter also has the most massive moon, Ganymede, in the solar system.
Saturn
Saturn is the sixth planet from the sun and has a diameter of almost 120,000 miles. It is also the largest planet in the solar system. Saturn has an average distance from the sun of about 1.5 billion miles. The gas giant is made mostly of gas and has no solid surface.
Uranus
Uranus is the seventh planet from the sun. It has a unique atmosphere made up of mainly methane, hydrogen, and helium. This atmosphere makes it the most colourful planet in our solar system.
Neptune
Neptune is the eighth planet from the sun. It is the largest and farthest from the sun of any planet in our solar system. Neptune was discovered in 1846 by German astronomer Johannn Titius. Neptune takes 164 Earth years to orbit the sun. It has an average temperature of -183 degrees Fahrenheit and a pressure of 1,792 pounds per square inch. Neptune is on of our solar system’s ice giants.
Pluto is no longer classed as a planet
In 2006, the International Astronomical Union reclassified Pluto as a dwarf planet. This means that it no longer falls under the classification of planets. There are now only eight planets in our solar system.