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The closest planets to the sun in order

The closest planets to the sun in order

Since the solar system is much larger than we imagined, the planets closest to the sun, in turn, are hotter, and according to research, the farthest planet from Earth is the planet Neptune, whose distance between Neptune and the sun is estimated at about 3. There is a billion miles and a new unit invented by scientists, and its name The Astronomical Unit (AU), which equates to about 93 million miles, which is the distance between Earth and the Sun, and the planets closest to the Sun in this article are in order by ascending position.

Order of the planets closest to the sun

A planet is known as celestial bodies that differ in size and characteristics, and the solar system consists of eight planets. We will talk about the planets closest to the sun in the following order:


  • This planet is one of the smallest planets in the solar system and it is the closest to the sun, as its size can be the size of Earth’s moon or slightly larger.
  • The distance between Mercury and the Sun is 58 million km.
  • The temperature of Mercury during the day reaches 430 degrees Celsius and drops to -180 degrees Celsius at night, and with this noticeable increase in temperature, it is not considered the warmest planet because it is surrounded by a thin atmosphere.
  • One Mercury day equals 59 Earth days.
  • The planet has no satellites.
  • It is a solid, rocky planet with moon-like craters that follow the planet.
  • The components of the planet’s atmosphere are: hydrogen, sodium, oxygen, helium and potassium.
  • This planet is 77 million kilometers from Earth.


  • It ranks second in the solar system in terms of its proximity to the sun.
  • The distance between Venus and the Sun is about 108 million km.
  • Gemini is called Venus and Earth because of the closeness of space, size and density.
  • The planet has the highest temperature, reaching 471 degrees Celsius during the day, due to the thinness of the atmosphere.
  • The atmosphere of Venus is made up of sulfuric acid and carbon dioxide, and most of Venus is still an active volcano today.
  • One planetary day equals 117 planetary days.
  • It is noteworthy that the sun never rises, it only sets because it rotates in the opposite direction to the orbital cycle.
  • The planet has no satellites.
  • This planet is 40 million km away from Earth and is the closest planet to Earth’s solar system.


  • Planet Earth is the third planet at a distance of 149 kilometers from the Sun.
  • It is the fifth largest planet in the solar system.
  • The period of rotation around the sun is 265 days.
  • The Earth’s average temperature is 14.9 degrees Celsius.

After identifying the planets closest to the sun, you can learn more like this: Sort the following planets by closest to and farthest from the sun.

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  • Mars is the fourth closest planet to the Sun, at a distance of 227.9 million km.
  • A day on Mars is equal to 24.6 hours on Earth.
  • The number of days in a year on Mars is 669.6 days.
  • The average temperature is -60°C in the summer and -125°C in the winter.
  • This is the highest volcanic mountain peak in the solar system on the planet.
  • The planet has two moons, one is Deimos and the other is Phobos.
  • This planet is 55 million km from Earth.


  • At a distance of 778 million km, it is the fifth planet in the order of planets in terms of proximity to the Sun.
  • It is the largest in the solar system as a whole.
  • The average temperature there is 0 degrees Celsius.
  • Jupiter has 79 moons, the most famous of which are Europa, Io, Callisto and Ganymede, discovered by Galileo Galilei, and they can be seen in the clear night sky.
  • According to the solar system as a whole, the planet has a strong magnetic field and heat radiates through it.
  • This planet is 588 million kilometers from Earth.

And don’t miss out on more details: information about the planets and mysteries of space for kids


  • The planet ranks sixth in terms of its proximity to the solar system at a distance of 1.437 million km.
  • The atmosphere consists of mostly hydrogen, contains trace amounts of helium and methane and clouds of ammonia crystals with a temperature of -400 degrees Celsius.
  • The average temperature reaches -285 degrees Celsius.
  • Saturn has 60 moons, the most famous and largest of which is Titan, and it is the only satellite in the solar system that has an atmosphere of methane and nitrogen.
  • The planet is surrounded by many complex rings, so you can see these rings clearly compared to the rest of the planets, and these rings have blocks of ice, and many astronomers believe that there are moons that belong to the planet, but they are located below it. blocks of ice.
  • This planet is 1.2 billion km from Earth.


  • The planet occupies the seventh position in the solar system, at a distance of 2.9 billion km from the sun.
  • The planet is similar to Saturn but is surrounded by fewer rings.
  • The planet is four times larger than Earth.
  • Uranus has 27 moons.
  • The planet consists of water, ammonia and methane.
  • The temperature is higher than -224.2 degrees Celsius.
  • A day on planet Earth is equal to 17 hours on planet Earth.
  • This planet was discovered by a telescope in 1781 AD, discovered by the scientist William Herschel, and it was the first planet to be discovered in the solar system.
  • This planet is 2.57 billion km from Earth.


  • It ranks eighth and last in terms of distance from the Sun, reaching 4.5 billion km from the Sun.
  • Neptune has 14 moons.
  • The temperature is -200 degrees Celsius.
  • A day on Neptune equals 16 hours on Earth.
  • Its atmosphere is composed of hydrogen and methane, which gives it its beautiful blue colour.
  • It is surrounded by five core rings and is blown by the most powerful winds in the solar system.
  • Scientists only saw this planet once in a spacecraft, in 1989.

When did the solar system appear?

  • The solar system appeared 4,600 million years ago
  • Where there is a huge mass of steam and gas called the nebula in astronomy.
  • And there was a gravitational force that made this mass spin around on itself, so it bumped into the smaller parts around it and pulled them, forming a ball of gas in the middle.
  • As it grows, the velocity increases, the particles clump together more, and the mass inside the nebula increases as it gets larger.
  • Heat is generated due to the high pressure in the middle.
  • The material inside the ball exploded due to nuclear fusion.
  • The large ball turned into the sun and the gases and vapors spread in the form of rocks, forming planets, asteroids and celestial bodies that revolve around the sun due to the force of gravity.

Arrangement of the planets in the solar system according to their size

Having mentioned in turn the planets closest to the Sun, we have listed the largest of them, according to the length of their diameters, from largest to smallest:

  • Jupiter: The largest planet in the solar system with a diameter of 142,984 km.
  • Saturn: 120,536 km in diameter, it is the second largest planet in the solar system.
  • Planet Uranus: 51,118 km in diameter and ranks third in size in the solar system.
  • Neptune is the fourth largest planet in the solar system with a diameter of 49,528 km.
  • Planet Earth: 12,756 in diameter, the fifth largest in the solar system.
  • Venus: It ranks sixth in size, with a diameter of 12,104 km.
  • Mars: It ranks seventh in terms of size, with a diameter of 6792 km.
  • Mercury: The smallest planet in the solar system, it is 4879 km long.

Finally, you can learn more like this: the order of the planets closest to or farthest from the sun.

Therefore, in turn, we have presented you with the closest planets to the sun, and you can leave a comment at the bottom of the article to learn more, and we will respond immediately.

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