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. astronomical telescopes

Anotations

Scope note:

Telescopes that are mounted with one axis pointed toward the celestial pole, and the second axis parallel to the earth’s equator, allowing the telescopes to follow a celestial body by moving along the polar axis.