астрономии

астрономии

The Russian word "астрономии" means "astronomy" (the study of celestial objects and phenomena).

Here, 'астрономии' is in the genitive case, indicating it is the subject of study.

Я изучаю основы астрономии в университете.

I am studying the basics of astronomy at university.

In this instance, 'астрономии' functions as a specification in the genitive case, determining the field of the book.

Книга по астрономии была интересной.

The book on astronomy was interesting.

Here, 'астрономии' is part of a prepositional phrase denoting the topic discussed.

На конференции прозвучали несколько докладов об астрономии.

At the conference, several presentations about astronomy were given.