This site will be taken down March 31st, 2026.

This was not an easy decision to make. For the last couple years, I have been struggling to find motivation for this site and to keep up with basic maintenance and security updates. With the rise of AI and more sophisticated tools, the usefulness of sites like this is questionable and traffic has nose-dived. I just don't have it in me to keep doing this. Thank you all for 10 years of support!

Zach

天文学

Reading

Kana: てんもんがく
Romaji: tenmongaku
Kana
Romaji

Definition

1

astronomy

Kanji

Readings: テン、 あまつ、 あめ、 あま-
Meanings: heavens, sky, imperial
Readings: ブン、 モン、 ふみ、 あや
Meanings: sentence, literature, style, art, decoration, figures, plan, literary radical (no. 67)
Readings: ガク、 まな.ぶ
Meanings: study, learning, science

Example Sentences

(かれ)天文学(てんもんがく)専門家(せんもんか)だ。
➥He is an expert in astronomy.
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天文学(てんもんがく)恒星(こうせい)惑星(わくせい)(あつか)う。
➥Astronomy deals with the stars and planets.
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数字(すうじ)天文学的(てんもんがくてき)なものだろう。
➥The figure will be astronomical.
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天文学(てんもんがく)天体(てんたい)科学(かがく)である。
➥Astronomy is the science of heavenly bodies.
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天文学(てんもんがく)宇宙(うちゅう)科学(かがく)である。
➥Astronomy is the science of the universe.
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(かれ)天文学(てんもんがく)興味(きょうみ)があるようだ。
➥It seems that he is interested in astronomy.
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