aphelion etymology

Etymology:

  • Ancient Greek "apo-" (away from) + "helios" (sun)

Meaning and Origin:

"Aphelion" is an astronomical term that refers to the point in an object's orbit around the Sun when it is farthest from the Sun. The term was first coined by Johannes Kepler in the 17th century.

The etymology of "aphelion" reflects its meaning. The prefix "apo-" denotes "away from," while "helios" refers to the Sun. Thus, "aphelion" literally means "farthest point away from the Sun."

Earth's aphelion occurs around July 4th each year, when it is approximately 152.1 million kilometers (94.5 million miles) from the Sun.

aphelion relate terms

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