perihelion
UKpəːrihilaiən
معنی فارسی
سمت الشمس ،
حضيض الشمس نقطه اي که ازمدارسياه که
....خورشيدنزديک تر است
معنی کامل و مثالها
/per´i hē´lē ǝn/n., pl.
● (نجوم) حضیض خورشیدین، نزدین
ریشه و کاربرد
ریشه
From the Greek words 'peri' meaning 'near' and 'helios' meaning 'sun'.
مثال
- The perihelion of the planet occurs in early January each year.
- During perihelion, the planet experiences its closest approach to the sun.
- The comet's perihelion was observed by astronomers using powerful telescopes.
ترکیبهای رایج
Reach perihelion Nearest perihelion Perihelion distance Perihelion altitude
تعریف انگلیسی
noun
- periapsis in solar orbit; the point in the orbit of a planet or comet where it is nearest to the sun