These clocks helped the 16th-century astronomer Tycho Brahe to observe astronomical events with much greater precision than before.

It is named after astronomer Tycho Brahe.

From 1590 to 1593 he worked as assistant for astronomer Tycho Brahe.

The next year he worked as assistant to the astronomer Tycho Brahe.

The city was the site of a castle and observatory built by astronomer Tycho Brahe.

It was viewed by people all over Europe, including famous Danish astronomer Tycho Brahe.

The ship is named after the Danish astronomer Tycho Brahe.

The famous astronomer Tycho Brahe was born there.

The planetary theory described in the book is similar to that later adopted by Danish astronomer Tycho Brahe.

The 16th-century astronomer Tycho Brahe used clocks with minutes and seconds to observe stellar positions.