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# The BFD Word of the Day
- URL: https://goodoil.news/the-bfd-word-of-the-day-210/
- Published: 2020-08-23T18:15:00.000Z
- Updated: 2020-09-18T09:33:32.000Z
- Author: Peter Andersen
- Tags: General, #wp, #wp-post, #Import 2024-07-17 03:00

The word for today is…

aphelion (noun) – The point on the orbit of a celestial body that is farthest from the sun.

Source : [The Free Dictionary](https://www.thefreedictionary.com/aphelion?ref=goodoil.news)

Etymology : Aphelion and perihelion are troublesome terms. Which one means a planet is nearest to the sun and which means it is farthest away? An etymology lesson may help you keep those words straight. Just remember that the “ap” of aphelion derives from a Latin prefix that means “away from” (the mnemonic “‘A’ for ‘away'” can help too); peri-, on the other hand, means “near.” And how are aphelion and perihelion related to the similar-looking astronomical pair apogee and perigee? Etymology explains again. The “helion” of aphelion and perihelion is based on the Greek word h?lios, meaning “sun,” while the “gee” of apogee and perigee is based on gaia, meaning “earth.” The first pair describes distance in relation to the sun, the second in relation to the Earth.

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