Perihelion occurs during their summer, which can lead to slightly more intense solar radiation compared to Northern Hemisphere summers. The Opposite: Aphelion
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All planets in our solar system follow orbits around the Sun that are not perfect circles but slight ellipses (an oval shape), meaning their distance from the Sun changes throughout the year. Perihelion occurs during their summer, which can lead
A notable feature of perihelion is that despite being closest to the sun, the Northern Hemisphere experiences winter. This is because the tilt of Earth's axis (not the distance from the sun) primarily governs the seasons — the Northern Hemisphere is tilted away from the sun at that time, so sunlight arrives at a lower angle and spreads over a larger area, resulting in cooler temperatures. If you share with third parties, their policies apply
The 3% increase in solar intensity during perihelion does have a subtle effect, however. It makes winters in the Northern Hemisphere slightly milder than they would be if the orbit were perfectly circular, and it intensifies the summer heat in the Southern Hemisphere. The Changing Dates of Perihelion