The correct option is Aphelion.
Explanation
The Earth revolves around the Sun in an elliptical orbit rather than a perfect circle. Consequently, the distance between the Earth and the Sun varies throughout the year.
- Aphelion: This term describes the position of the Earth when it is farthest from the Sun. This phenomenon typically occurs around July 4th each year. At this point, the distance is approximately 152 million kilometers.
- Perihelion: This term describes the position of the Earth when it is nearest to the Sun. This typically occurs around January 3rd each year, when the distance is approximately 147 million kilometers.
- Solstice: This refers to the moments in the year when the Sun appears to reach its most northerly or southerly excursion relative to the celestial equator (e.g., Summer Solstice and Winter Solstice). It relates to the tilt of the Earth's axis, not the orbital distance.
- Equinox: This refers to the time when the plane of Earth's equator passes through the geometric center of the Sun's disk, making day and night of approximately equal duration all over the planet.
Key Takeaway: Aphelion (associated with "Away") marks the maximum distance between the Earth and the Sun, occurring in early July, whereas Perihelion marks the minimum distance, occurring in early January.