Technically speaking, Neptune is the planet with the lowest surface temperature; however, Neptune does not have a solid surface.
Neptune(If you include dwarf planets it is Eris)
The lowest surface temperature in the solar system, around -200 degrees Celsius, occurs on the moons of Saturn, particularly Enceladus and the outer regions of Uranus and Neptune. These celestial bodies are far from the Sun, resulting in extremely cold temperatures. Enceladus, for instance, has a surface primarily composed of ice, contributing to its frigid conditions.
Mercury is the smallest of the four inner planets and closest to the sun. It is also the smallest of all eight planets.
Mercury has the lowest density among the planets listed. Its density is about 5.43 grams per cubic centimeter, making it one of the densest terrestrial planets in our solar system.
Mercury has the least variation in surface temperature among the planets in our solar system. This is because it has almost no atmosphere to trap heat, leading to very hot temperatures on the sunny side and very cold temperatures on the dark side.
Neptune(If you include dwarf planets it is Eris)
Of the planets in our solar system, Mars has the lowest surface gravity of around 38% of earths - over one third. This comes closest to the 25%. We then have moons and dwarf planets, but these have much lower surface gravities.
The Pluto with a surface temperature of -235 degree C.But as now a days Pluto being not considered as an authentic planet in our solar system other than a mere KBO (kuiper belt object).The coldest planet status should go to Neptune (-213 degree C) & Uranus (-210 degree C).Neptune maybe. It is farthest from the Sun.Actually, perhaps surprisingly, some sources say Uranus is slightly colder than Neptune.Neptune seems to have an internal heat source.If you wanted to include "Dwarf Planets", then Pluto or Eris, which is even FARTHER out. We don't really have good temperature information on the trans-Neptunian dwarf planets.
The lowest surface temperature in the solar system, around -200 degrees Celsius, occurs on the moons of Saturn, particularly Enceladus and the outer regions of Uranus and Neptune. These celestial bodies are far from the Sun, resulting in extremely cold temperatures. Enceladus, for instance, has a surface primarily composed of ice, contributing to its frigid conditions.
Mercury is the smallest of the four inner planets and closest to the sun. It is also the smallest of all eight planets.
pluto
Venus has a surface temperature that falls within the range of 90 K to 700 K. With an average surface temperature of about 735 K, Venus is the hottest planet in our solar system due to its thick atmosphere that traps heat.
Mercury has the lowest density among the planets listed. Its density is about 5.43 grams per cubic centimeter, making it one of the densest terrestrial planets in our solar system.
All eight planets have a surface temperature, though it varies as the planets distance from the sun varies. Closer planets to the sun generally have a higher surface temperature, while further planets have a colder surface temperature.
Mercury has the least variation in surface temperature among the planets in our solar system. This is because it has almost no atmosphere to trap heat, leading to very hot temperatures on the sunny side and very cold temperatures on the dark side.
The surface temperature of the main star of the Polaris system is 6015 K.
cloud tops The four largest planets in our solar system are gas giants. They have no solid surface.