Object from: British Library on Flickr Commons.
Date: 1607-18 Place: Antwerp, Belgium (Accession num: 1878-11)
So far people have added content in 4 turns about this object.
Headline: "Labe" is a variant of "take" in Greek. What does this instrument "take" about a star?
Summary: Astrolabes are used to measure a star's altitude. These were used from around 200 b.c. until the development of the sextant.
You can also view a list of objects with added facts (not just tags).