perihelion是由希腊词根"peri-"（周围）与"heli-"（太阳）构成的复合词，直译为"围绕太阳的点"，特指行星或彗星绕日公转轨道上距离太阳最近的位置。

Jan 15, 2026 · The term "perihelion" describes the point in an astronomical body's orbit where it is nearest to the sun. Derived from the Greek words peri (around) and helios (sun), the word …

Earth is closest to the Sun in January (perihelion); in July, it is farthest away (aphelion). Aphelion and perihelion dates for 2026, 2027, and other years.

The perihelion is the point in the orbit of a planet, asteroid or comet that is nearest to the sun. It is the opposite of aphelion, which is the point farthest from the sun.

Oct 4, 2025 · At perihelion, Earth is closest to the Sun and moves faster in its orbit due to the increased gravitational pull. As a result, the Northern Hemisphere winter is slightly shorter …

Dec 18, 2025 · In 2026, Earth will be 91,403,637 miles away from the Sun at perihelion and 94,502,962 miles away from the Sun at aphelion. So, Earth is about 4,800,000 km (3,000,000 …

Dec 31, 2025 · The sun shines above the Earth’s horizon. Perihelion, the point when Earth is closest to the Sun, occurs annually in early January.

Jul 1, 2025 · When Earth is closest to the Sun in its orbit, it's known as perihelion; when it's furthest from the Sun in its orbit, it's known as aphelion.

Jan 3, 2026 · The terms perihelion and aphelion describe the closest and farthest distances of the Earth to the Sun, respectively. The Earth is closest to the Sun (at perihelion) roughly 2 weeks …

The meaning of PERIHELION is the point nearest to the sun in the path of an orbiting celestial body (such as a planet).