Where is the Earth when it is at aphelion?

Excuse me, could you please elaborate on the concept of aphelion and its significance in relation to the Earth's position in the solar system? Specifically, when the Earth reaches aphelion, where exactly is it positioned in its orbit around the Sun? How does this affect the Earth's temperature or other celestial phenomena? I'm curious to understand the astronomical dynamics at play during this particular phase of our planet's annual journey.