Translation of "Astronomy" in Chinese

They are very interested in astronomy.

他們對天文學十分感興趣。

Astronomy deals with the stars and planets.

天文學涉及恆星和行星。

It seems that he is interested in astronomy.

他好像對天文學挺有興趣。

Tom doesn't know the difference between astronomy and astrology.

湯姆不知道天文學和星象學之間的差別。

Astronomy is at the same time the most ancient and the most modern science.

天文學同時是最古老也最現代的科學。