perihelion

Meanings

• noun

  The point in its orbit where a planet is closest to the Sun.

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Antonyms

aphelion

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Variants

List of all variants of perihelion that leads to same result
perihelia , perihelial , perihelion , perihelions

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Etymology

origin and the way in which meanings have changed throughout history.

From Greek peri 'near' and helion 'sun'.

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Trivia

Any details, considerations, events or pieces of information regarding the word

1. Perihelion is not a constant value for a planet's orbit. It varies slightly due to the elliptical shape of the orbit.

2. The Earth's perihelion occurs around January 3rd each year, making that time the closest the Earth comes to the Sun.

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Related Concepts

informations on related concepts or terms closely associated with the word. Discuss semantic fields or domains that the word belongs to

1. aphelion: The opposite of perihelion, the point in a planet's orbit where it is farthest from the Sun.

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Culture

Any cultural, historical, or symbolic significance of the word. Explore how the word has been used in literature, art, music, or other forms of expression.

In astronomy, perihelion is a significant point in a planet's orbit around the Sun. It is the point where the planet is closest to the Sun, and its orbit is at its smallest semi-major axis. The term is also used to describe the corresponding position of a comet or asteroid.

How to Memorize "perihelion"

1. visualize
   

   - Imagine the Sun at the center of a circle, and the planet orbiting around it. Perihelion is the point where the planet is closest to the Sun.

2. associate
   

   - Associate the word 'perihelion' with 'closest to the Sun'.

3. mnemonics
   

   - Remember that 'peri' means 'near' and 'helion' means 'sun', so perihelion is the 'near sun'.

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