That would depend on the planet's proximity to the star (sun) around which it revolves, and the type of atmosphere. In our solar system, atmospheres on solid planets retain and distribute heat, and on gas giants create heat.
Examples of Atmospheric Effects
On Mercury, the lack of an atmosphere means that one side is hellishly hot, while the other side (out of sunlight) is incredibly cold. An actual atmosphere, if it existed, would likely transport heat from one side to the other.
On Venus, the composition of the atmosphere (CO2 with high clouds of sulfuric acid) traps the Sun's heat and makes it scorchingly hot on the entire planet.
On the Earth, our atmosphere blocks the most intense solar radiation, and transports heat energy to colder regions. But insufficient solar radiation still allows very cold places such as Siberia and Antarctica.
On Mars, the lower solar radiation and the thin atmosphere make it colder than it would be with a thicker atmosphere, or clouds like Venus. Unfortunately, Mars is too small to hold much of an atmosphere.
On the outer gas giant planets, most of their volume is atmosphere, and the pressure makes them hotter deep inside, even without much heat from the Sun (in any case, sunlight could never be seen from their hidden solid surface).
The lack of atmosphere on a planet can result in extreme temperature variations between day and night, as well as high levels of radiation from the sun. Without an atmosphere to trap heat, temperatures can drop drastically at night. Additionally, the absence of atmospheric pressure can make it difficult for liquid water to exist on the planet's surface.
The composition of a planet's atmosphere is another important factor in determining its temperature. Greenhouse gases in the atmosphere, such as carbon dioxide and methane, trap heat from the planet's surface and contribute to the overall temperature.
The further a planet is from the sun, the less light and heat radiation it gets from the sun leaving it a cooler planet. However, a planet with a gaseous atmosphere is less likely to radiate away the planets heat so it may retain more of the solar heat.
The gaseous layer surrounding a planet is called its atmosphere. An atmosphere is composed of different gases, such as nitrogen, oxygen, and carbon dioxide, and plays a crucial role in protecting the planet, regulating its temperature, and sustaining life. The composition and thickness of an atmosphere vary from planet to planet.
Atmospheric pressure is an important factor in keeping liquid water on the surface of a planet. With no atmosphere, liquid water would quickly escape into space. It would depend on various factors such as the temperature and escape velocity of the planet of course. Scientists think liquid water existed on Mars in the past when the atmosphere was a lot denser. Water does exist on the surface Mars, but only as ice.
Planet with an atmosphere, Venus. Planet without an atmosphere, Mercury (on the day side).
Without an atmosphere, a planet's temperature can vary widely depending on its distance from the sun and its surface properties. The lack of an atmosphere means that heat is not retained, so temperatures can be extreme, with highs during the day and lows at night. Overall, the temperature tends to be closer to the planet's actual temperature without the moderating effects of an atmosphere.
Mercury has not atmosphere, resulting in extreme temperature variations.
That means that due to the presence of an atmosphere, and specific gases in the atmosphere, the average temperature on the planet is higher than it would have without an atmosphere - or without specific gases. Greenhouse gases, that increase the average temperature, include carbon dioxide (CO2) and methane (CH4).
Research has shown that the planet Venus has its atmosphere temperature increased by the greenhouse effect
The lack of atmosphere on a planet can result in extreme temperature variations between day and night, as well as high levels of radiation from the sun. Without an atmosphere to trap heat, temperatures can drop drastically at night. Additionally, the absence of atmospheric pressure can make it difficult for liquid water to exist on the planet's surface.
Yes, an atmosphere is necessary for a planet to have a greenhouse effect. The atmosphere traps heat from the planet's surface, creating a warming effect similar to a greenhouse. Without an atmosphere, there would be no mechanism to retain and redistribute heat, leading to extreme temperature fluctuations.
Mercury
Without a suit? No, the planet's atmosphere is thin and without oxygen.
The composition of a planet's atmosphere is another important factor in determining its temperature. Greenhouse gases in the atmosphere, such as carbon dioxide and methane, trap heat from the planet's surface and contribute to the overall temperature.
The further a planet is from the sun, the less light and heat radiation it gets from the sun leaving it a cooler planet. However, a planet with a gaseous atmosphere is less likely to radiate away the planets heat so it may retain more of the solar heat.
The further a planet is from the sun, the less light and heat radiation it gets from the sun leaving it a cooler planet. However, a planet with a gaseous atmosphere is less likely to radiate away the planets heat so it may retain more of the solar heat.