天てん文もん学がく

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Common wordFreq.FrequencyTop 20,000

Meanings

noun

astronomy

The scientific study of celestial objects, space, and the universe as a whole.

彼かれは大だい学がくで天てん文もん学がくを専せん攻こうしている。
He is majoring in astronomy at university.
天てん文もん学がくの進しん歩ぽによって、宇う宙ちゅうの謎なぞが少すこしずつ解かい明めいされている。
Advances in astronomy are gradually unraveling the mysteries of the universe.

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Usage patterns

〈人ひと〉が天てん文もん学がくを専せん攻こうするto major in astronomy
彼かれは大だい学がくで天てん文もん学がくを専せん攻こうしている。
He is majoring in astronomy at university.
〈人ひと〉が天てん文もん学がくに興きょう味みを持もつto have an interest in astronomy
子こ供どものころから天てん文もん学がくに興きょう味みを持もっていた。
I've been interested in astronomy since childhood.
天てん文もん学がくの研けん究きゅうをするto do research in astronomy
この大だい学がく院いんでは天てん文もん学がくの研けん究きゅうをしている学がく生せいが多おおい。
Many students in this graduate program do research in astronomy.

Kanji

天heavens, sky, imperial
文sentence, literature, style
学study, learning, science

Related words

宇う宙ちゅう物ぶつ理り学がく
天文学 is the broad science of observing and describing celestial objects, while 宇宙物理学 focuses on the physical processes and laws behind them.
天てん文もん
天文学 is the full academic term for the discipline of astronomy, while 天文 is a shorter form typically used inside compounds like 天文台 or 天文学的.

Don't confuse with

占せん星せい術じゅつ
天文学 is the empirical science of studying stars and planets, whereas 占星術 is the pseudo-scientific practice of using their positions to predict fate or personality.

Word family· 8

古こ天てん文もん学がく
archaeoastronomy; archeoastronomy
位い置ち天てん文もん学がく
position astronomy; positional astronomy
恒こう星せい天てん文もん学がく
stellar astronomy
球きゅう面めん天てん文もん学がく
spherical astronomy
航こう海かい天てん文もん学がく
nautical astronomy

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Built from

天てん文もん+学がく

Etymology

天文, “celestial patterns or phenomena,” is an ancient Chinese term, to which 学, “study,” was added. 天文学 was used in Japanese before the Meiji period and later became the standard term for Western astronomy.