Tools and supplies for discovering space in 1798

Leiden University has a long history in studying space, which is reflected in the collections held at Leiden University Libraries. An inventory of the university's obervatory gives insight in the tools and supplies needed for discovering space in 1798.

Mart van Duijn • June 28, 2018

A New Discovery in an Old Astronomy Book

One of the annotations reveals awareness for a faster calculation of sines known as the ‘Ingenious Way’ (Artificium).

Guest author • April 07, 2015

The Leiden Aratea

Made at the court of Louis the Pious at Aachen, this codex bears witness of the great interest of the Carolingian emperors in classical antiquity

André Bouwman • April 16, 2009

Two men of science ‘meet’

The scholar Josephus Justus Scaliger was greatly admired for his astronomical knowledge. In 1598 the Danish astronomer Tycho Brahe sent him a manuscript with his own portrait and ample praise.

Kasper van Ommen • January 20, 2009

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Tools and supplies for discovering space in 1798

A New Discovery in an Old Astronomy Book

The Leiden Aratea

Two men of science ‘meet’