perihelia

Noun

The point in the orbit of a planet or comet at which it is nearest to the sun.

ریشه

From the Greek words 'peri' meaning 'near' and 'helios' meaning 'sun'.

مثال

• The perihelia of comets can be observed from Earth during their closest approach to the sun.
• The planet's perihelia occur at regular intervals as it orbits the sun.
• Astronomers study the effects of perihelia on the behavior of celestial bodies.

ترکیب‌های رایج

Reach perihelia Nearest perihelia Perihelia distance Perihelia altitude