Interestingly, because Earth is closer to the Sun during perihelion, it moves slightly faster in its elliptical orbit (thanks to Kepler’s laws of planetary motion). This means Northern Hemisphere winters are a few days shorter and milder than Southern Hemisphere winters — a small but measurable effect.
Instead, seasons are caused by the 23.5-degree tilt of Earth’s axis. During January, the Northern Hemisphere is tilted away from the Sun, resulting in shorter days and indirect sunlight. Interestingly, because Earth is closer to the Sun at this time, it receives about 7% more solar intensity than it does at aphelion, which slightly moderates the severity of winter in the North and intensifies summer in the South. Orbital Velocity and the Sun earth closest point sun date
Earth's orbit around the Sun is not a perfect circle; it is an ellipse (oval-shaped). Because of this elliptical shape, there is a point where Earth is closest to the Sun (Perihelion) and a point where it is farthest away (Aphelion). Interestingly, because Earth is closer to the Sun
#Perihelion #Earth #Sun #Astronomy #SpaceFacts #SolarSystem During January, the Northern Hemisphere is tilted away