Where does “赤外線天文学” come from?

赤外線天文学 (Japanese) comes from Japanese 天文学, from Japanese 天文, from Old Japanese てんもん, from Middle Chinese てんもん.

赤外線天文学 (Japanese): infrared astronomy

Definitions

  1. infrared astronomy

Ancestry of “赤外線天文学”, step by step

赤外線天文学 traces back through two separate lines of ancestry.

via Japanese 天文学

StepLanguageWordMeaning
1Japanese天文学astronomy
2Japanese天文astronomy
3Old Japaneseてんもん—
4Middle Chineseてんもん—

via Japanese 赤外線

StepLanguageWordMeaning
1Japanese赤外線infrared radiation; Short for 赤外線通信
2Japanese外(the) outside
3Middle Chinese外—
Every word from Middle Chinese てんもん →Every word from Old Japanese てんもん →Every word from Japanese 天文 →