Aphelion的音標是["?f?l??n]，基本翻譯是遠日點。記憶技巧可以是：阿非利肯的遠日點（諧音：阿非利肯遠日盤）。

Aphelion:

詞源：希臘語“aphelio”，意為“遠離”。

變化形式：復數形式“aphelions”，過去式“aphelia”和“aphelion”，現在分詞“aphelionic”。

相關單詞：

1. Ecliptic：黃道

2. Heliacal rising：日食前的曙光，日食先驅

3. Heliocentric：以太陽為中心的

4. Apogee：遠地點，最遠點

5. Perigee：近地點，最近點

6. Parallax：視差

7. Apside：軌道的某一邊

8. Apoapsis：軌道的遠地點

9. Epoch：時期，時代

10. Aphelion distance：遠日點距離，近日點與遠日點之間的距離。

在古代，人們認為太陽和月亮的運動是神靈的體現，因此這些天文學概念具有深厚的文化背景和象征意義。同時，這些詞匯也反映了人類對宇宙的探索和理解的進步。

常用短語：

1. aphelion - 遠日點

2. perihelion - 近日點

3. solar system - 太陽系

4. planetary motion - 行星運動

5. orbital velocity - 軌道速度

6. gravitational pull - 萬有引力

7. eccentricity - 離心率

雙語例句：

1. The aphelion of a planet is the point in its orbit where it is farthest from the sun. (英語)

2. The planet"s perihelion is the point in its orbit where it is closest to the sun. (漢語)

3. The solar system"s planets all move in elliptical orbits, with the aphelion and perihelion gradually changing over time. (日語)

4. The orbital velocity of a planet at its aphelion is the highest, while at its perihelion it slows down. (法語)

5. Gravity between the planets affects their motion, causing them to follow elliptical orbits with varying eccentricities. (德語)

6. The eccentricity of an orbit determines how close or how far a planet gets to the sun during its perihelion and aphelion. (西班牙語)

7. The sun"s gravitational pull affects all the planets in the solar system, causing them to move in harmony with one another. (意大利語)

英文小作文：

Aphelion and Perihelion: The Mysteries of Planetary Motion

The motion of planets in our solar system is fascinating, and nowhere is this more apparent than when observing the positions of our planets during their journey around the sun. At their farthest point from the sun, or aphelion, planets travel through space at their fastest speed, and at their closest point to the sun, or perihelion, they slow down. This phenomenon is caused by the gravitational pull of the sun on each planet, causing them to follow elliptical orbits with varying eccentricities.

The eccentricity of an orbit determines how close or how far a planet gets to the sun during its journey around the sun. For example, when a planet passes closest to the sun, it experiences perihelion, where it receives the most heat and energy from the sun"s rays. Conversely, when a planet passes farthest from the sun, it experiences aphelion, where it receives less heat and energy. This creates interesting patterns in weather patterns and climate changes across our planet.

Understanding the relationship between aphelion and perihelion also sheds light on the dynamics of our solar system. Gravity between the planets affects their motion, causing them to move in harmony with one another. This interplay between celestial bodies creates beautiful patterns and patterns that are constantly changing as they move through space and time. In conclusion, aphelion and perihelion are essential concepts in understanding the motion of planets in our solar system, and they provide valuable insights into the mysteries of celestial mechanics.