Question

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Why is the sun cold in the winter?
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Answer 1

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Because it is smeared over a greater area, winter sunlight has less power per unit area, and therefore heats the earth less, leading to cold winters. As shown here, the northern hemisphere receives less sunlight per unit area when it is tilted away from the sun and experiences the cold of winter.

Answer 2

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• The sun never changes its temperature in relation to Earth’s seasons. Since it is literally a ball of fire facilitated by nuclear reactions, its surface stays hot all year round. The extremely high heat of the sun causes it to emit copious amounts of radiation in all directs from its spherical shape. Since the sun emits light rays in our visible spectrum, it also emits rays in the form of infrared waves as well as ultraviolet waves. This radiation travels throughout the solar system and, due to the way that light waves carry energy through momentum, warms everything that it comes into contact with.

• So, if the sun does not change in temperature throughout our Earthen year, how is it colder in winter (for the Northern hemisphere)? This can be explained by the configuration and position of the Earth itself as opposed to anything to do with the sun, which is in effect a constant.