# List of Hottest and Coldest Planets in the Solar System

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### Hottest and Coldest Planets in the Solar System

There are two types of planets existing in the solar system, namely Terrestrial Planet (made up of rocks) and Giant planets (gas giants and ice giants). Two factors- the structure of the planets and their distances from the sun determine the temperature of the planets. There is also another determining factor of the nature and composition of the planets, that is, the amount of heat radiated by the planets as well as the heat retained by them. The hottest and coldest planets of the solar system along with their temperatures and few other things are discussed in the following essay.

### 1. Venus:

The average temperature of Venus is 464 degree Celsius. It is the hottest planet in the solar system and the second nearest from the Sun.

### 2. Mercury:

The average temperature of Mercury is 167 degree Celsius. It is the first nearest planet from the Sun and the second hottest planet in the solar system. The range of temperature of the planet is -93 degree Celsius to 427 degree Celsius.

### 3. Earth:

The third planet from the Sun with an average temperature of 15 degree Celsius is our very own planet Earth.

### 4. Mars:

Mars is the fourth planet from the Sun with an average temperature of -65 degree Celsius. Mars is made up of rocks which mean it is a terrestrial planet.

### 5. Jupiter:

Jupiter is the fifth planet from the sun. It is the largest planet in the solar system with an average temperature of -110 degree Celsius. The components of the atmosphere of the planet are ammonia crystals and possible ammonium hydrosulphide.

### 6. Saturn:

The sixth planet from the Sun with an average temperature of -140 degree Celsius is Saturn. It is the second-largest planet in the solar system after Jupiter.

### 7. Uranus:

Uranus is the seventh planet from the Sun with an average temperature of -195 degree Celsius. It is the third-largest planet according to the radius and fourth-largest planet according to the mass. The major feature of the planet is it contains ‘ices’ like water, ammonia and methane along with traces of other hydrocarbons.

### 8. Neptune:

Neptune is the eighth and furthest known planet from the Sun with an average temperature of -200 degree Celsius. The density of the giant planet Neptune is the maximum in the solar system. It is the fourth-largest planet according to the diameter.

### 9. Pluto:

Pluto is known as the dwarf planet in the Kuiper Belt, a surrounding of particles beyond Neptune. The average temperature of the planet is -225 degree Celsius. The atmosphere of the planet contains nitrogen, methane and carbon monoxide in an equal distribution with their ices.

Thus the planets are categorised by their temperature, atmospheric ingredients, surface diameters and many other variables. The hottest planet in the solar system is Venus with an average temperature of 464 degree Celsius and the coldest planet in the solar system is Pluto with an average temperature of -225 degree Celsius. Scientists are trying to find out lives in several planets but are yet to achieve success.