The Hottest Planet in the Solar System and the Hottest Place in the Universe

KOMPAS.com – Planets can be simply defined as celestial bodies that revolve around the sun.

More than that, the planet must be large enough to have enough gravity to force it into a spherical shape and clear out other objects near its orbit.

There are eight planets in the solar system, namely Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus and Neptune.

Each planet has different conditions, ranging from surface conditions, atmosphere, to the temperature of the planet.

Also read: Why is Mars Nicknamed the Red Planet? This is the reason

So, what is the hottest planet in the solar system?

The hottest planet in the solar system

Reporting from the IFL Science page, Venus is the hottest planet in the solar system with an average temperature of 464 degrees Celsius, this figure is hot enough to melt lead.

Venus is the second closest planet to the Sun after Mercury. However, why isn’t Mercury the hottest planet?

The average temperature of Venus is very hot due to its cloud cover. Venus’s atmosphere is made of carbon dioxide and sulfuric acid clouds, about 100 times thick than Earth’s atmosphere.

Also read: What is a Dwarf Planet? The following is the definition and examples

In the past, the entire planet Venus experienced a powerful greenhouse effect. Where everything on its surface will burn, melt, and destroy at the same time.

Correspondingly, quoted from the Britannica page, even though Venus is closer to the Sun than Earth, Venus absorbs less sunlight because of its thick atmosphere and clouds.

This sunlight is absorbed and re-emitted as infrared radiation. On Earth, infrared radiation returns to space.

But on Venus, thick carbon dioxide clouds trap infrared radiation, making the planet very hot.

Also read: 7 Rarely Known Facts about the Planet Neptune, the Ice Giant in the Solar System

The hottest place in the universe

If Venus is the hottest planet in the solar system, then Quasar 3C273 is the hottest place in the universe.

Quoted from the Live Science page, Quasar 3C273 is a brightly shining region around a supermassive black hole which is about 2.4 billion light years from Earth.

It has a core temperature of about 10 trillion kelvin (more than 10 trillion degrees Celsius). But there is still uncertainty surrounding these temperature estimates.

Just like other black holes, quasar 3C273 has a gravitational pull so strong that nothing, not even light, can escape from it.

Also read: The reason Pluto was removed from the list of planets in the solar system, why?

Although the interior is very cold, the ring of gas (accretion disk) rotating around it is quite the opposite.

When molecules are sucked into a black hole at high speed, the friction generated by collisions between these materials can cause temperatures of trillions of degrees Celsius.

And for comparison, the surface temperature of the sun as the hottest object in the solar system is only 5,500 degrees Celsius.

Also read: Called Earth’s twin, here are 5 interesting facts about the planet Venus

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2024-03-05 14:00:00
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