Hierarchy classification:

1. top of the aat hierarchies
2. Objects Facet
3. Furnishings and Equipment (hierarchy name)
4. Tools and Equipment (hierarchy name)
5. equipment
6. [equipment by profession or discipline]
7. [equipment for science and technology]
8. scientific instruments
9. astronomical instruments
10. [temporary alphabetical list: astronomical instruments]

Anotations

Scope note:

Astronomical instruments invented by M. Weighelius, a mathematics professor at the University of Jena in Upper Saxony in the 17th century, which allowed multiple people to view the same telescopic image at the same time.