天てん体たい

て

ん

た

い

Common wordJLPTN1Freq.FrequencyTop 20,000

Meanings

1

heavenly body; celestial body; astronomical object

General term for any natural object in space: stars, planets, moons, comets, etc.

Stargazing (observing celestial bodies) is my hobby.

太たい陽ようは最もっとも身み近ぢかな天てん体たいの一ひとつだ。

The sun is one of the most familiar celestial bodies.

〈天てん体たい〉を観かん測そくするto observe a celestial body
望ぼう遠えん鏡きょうで天てん体たいを観かん測そくする。
I observe celestial bodies through a telescope.
〈天てん体たい〉が輝かがやくfor a celestial body to shine
夜よ空ぞらにたくさんの天てん体たいが輝かがやいている。
Many celestial bodies are shining in the night sky.
〈天てん体たい〉の動うごきthe movement/motion of a celestial body
天てん体たいの動うごきを計けい算さんして星ほしの位い置ちを予よ測そくする。
We predict the position of stars by calculating the motion of celestial bodies.

星ほしN4
星 is the everyday word for 'star', while 天体 is the formal, scientific term covering any object in space, including planets and comets.
惑わく星せいN1
惑星 specifically means 'planet', a subtype of 天体, which is the broader scientific term for any object in space.

宇う宙ちゅうN4
天体 means a celestial body like a star or planet, whereas 宇宙 is the vast space in which such bodies exist.

Compound of 天 (heaven, sky) and 体 (body). The exact historical derivation is uncertain, but the kanji straightforwardly mean 'heavenly body'.

天てん体たい暦れき

astronomical ephemeris; ephemeris

nuclear astrophysics

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