Which planet in our Solar System is the coldest one?
Until it lost its planetary status in 2006, Pluto was the coldest with an estimated surface temperature between -235 and -210 degrees Celsius. But Pluto has now been relegated the status of a Dwarf Planet.
Uranus has an outer temperature of -224 degrees Celsius. It is colder than Neptune, as it lacks such a large moon as Neptune's Triton to heat it via tidal interactions. On Neptune, Triton's gravity warps the shape of the planet pulling "harder" on the face of Neptune closes to Triton (The farther away, the less gravitational influence), just like Earth's moon brings in the tides. This mechanically warping takes energy, draining the rotational kinetic energy of Triton, and ultimately converting it to heat. Uranus' largest moon Ariel is less than a tenth as massive as Triton, even though its a little bit closer to it's planet, and doesn't provide as significant tidal warming. This keeps Uranus colder, Even though Neptune is more than a billion miles farther away from the Sun, and gets less sunlight.
The temperature on the distant Kuiper Belt dwarf planets should be practically absolute zero, since they get virtually no solar or internal heating. Haumea, Makemake, and Eris are locked in a frozen state like Pluto.
Mercury Hot and Cold
Interestingly, since Mercury rotates so slowly, at night it
cools down to -183 degrees Celsius. Not quite as cold as Uranus or
Neptune, but very chilly! Since it reaches 630 degrees Celsius on
the sunward side, even 88 Earth days in shade can't cool it
Uranus is the coldest planet in the solar system.
Comment: That's just about right, but Neptune is more or less at
the same temperature.
Uranus. But Neptune is very nearly as cold.
Is Uranus the coldest planet in OUR solar SYSTEM is actually how you should write the question. Pluto used to be the coldest planet in the solar system with an average -235 to -210 degrees Celsius! But since Pluto was classified as a dwarf planet since 2006 it no longer counts as one of the planets in our solar system. So Uranus IS the coldest planet with -224 degrees Celsius. Read More
Triton, one of Pluto's moons, is the coldest moon in the solar system. In second place is Charon, another one of Pluto's moons. Read More
Moon is not a planet - It is a satellite. Several planets in our solar system have moons (one or more) that happen to have names. Our moon doesn't have one. The coldest planet in our solar system used to be Pluto until it was demoted from the planetary status. Now it is Uranus. Read More
Because it is the last planet in are solar system, in other words, it's the farthest away form the sun. Hoped this helped! Read More
Earth is the only major planet in our solar system with one moon. Read More
Earth is one of the planets in our solar system. Read More
Mercury -during the day it is very hot -at night it is very cold because of its slow rotation Read More
Neptune is the 8th planet and one of the coldest planets in our solar system. The temperature on Neptune is -353 F both day and night. Read More
Only one planet is out of the solar system that is Pluto . Read More
MERCURY - It is the first planet of the solar system. It is the planet nearest to the sun. VENUS - It is next after mercury, and is also known as morning and evening star. MARS - It is called the red planet. EARTH - It is the only planet (as far as we know) that has life. JUPITER - It is the largest planet. SATURN - It has rings around it and its density… Read More
Earth is the only planet in the solar system with one moon. Read More
It is within our solar system, but it is no longer considered a planet; it has now been reclassified as a dwarf planet. Read More
Earth is the only planet in the solar system with just one moon. Read More
Because it is far away from the sun. Think of the planet Mercury, it is the closest to the sun and it is HOT. And think of Pluto the dwarf planet, it is very far away from the sun & it is COLD. Read More
Pluto has not changed in any way. Our definition of a planet has changed. So, Pluto is no longer a planet, it is a minor planet of our solar system. Read More
The largest moon in the solar system is Ganymede, one of the moons of Jupiter. Read More
No known planet does. Earth is the only planet in the solar system to have only one moon, but it is one of the largest moons in the solar system. Mars has two tiny moons named Phobos and Deimos. The giant planets of the outer solar system all have an assortment of moons big and small. Read More
The Earth is the only planet in our Solar System with one Moon Read More
Mercury, the smallest planet and the closest to the sun. Mercury is the only planet without an atmosphere. Venus, which is the hottest planet with temperatures of 464 on average. earth, the only planet with life on it as far as we know. Mars, also know as the red planet because it's surface gives off the colour red. Jupiter, a gas giant and the biggest planet of our solar system. It could have been a… Read More
1 - ONE Saturn is the second largest planet in the solar system. Only one other planet is larger, this is Jupiter. Only one, Jupiter Read More
In our solar system, the planet on which one would weight the most is Jupiter Read More
Pluto - it is now categorised as a dwarf planet Read More
No one invented it - it is a planet in our Solar System. See related question Read More
No one discovered the Solar System. It has been around long before life existed on planet Earth. Read More
The one that's closest to the SUN. Read More
it is the third planet from the sun that has one moon. Read More
Saturns the sixth one out from the sun. Read More
Right now there is I believe only one planet that begins with the letter J that is "Jupiter". In Earth's Solar System which is the largest planet in our solar system. Read More
Your Answer: Jupiter Did you know: Jupiter is the largest planet in the solar system, and contains more matter than all the other planets combined. Read More
Jupiter is the planet that has the heaviest atmosphere. It is one of the gas giants and is the largest planet in the solar system. Read More
Pluto, which was/is the 9th planet, and the one which is the furtherest out in our solar system. Read More
Within the Solar System, Earth is the only planet with one moon - The Moon. Read More
a planet in our solar system Read More
Well there isnt one. There is no planet in the world, there are planets in the solar system though Read More
In our Solar System, that would be Mercury. (It used to be Pluto, but that one is no longer considered a "planet"). Read More
Uranus is one of the main eight planets of our solar system. Read More
What is the largest planet in the solar system and is one of the brightest objects in the night sky?
Jupiter is the largest planet. Read More
There isn't one. Pluto is a dwarf planet. Read More
There is only one planet in the solar system that is known to have active volcanoes. That is Earth. Read More
Eris is known for 3 things: Being the largest dwarf planet in the solar system. Being one of the farthest objects from the sun in the solar system Being a dwarf planet Read More
Ganymede is one of the 4 largest moons of Jupiter. Ganymede orbits Jupiter. It is a moon that orbits the planet Jupiter. It is the largest moon in the Solar System. Jupiter is the fifth planet of our Solar System. Read More
Because it is one of the planets that's more farther away from the sun. Hoped this helped! Read More
One cannot say for sure if it is the smallest planet in space, but it is the smallest planet in our Solar System. Read More