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 used for photographing the sun, developed in the mid-19th century in Europe. The first photoheliograph was developed by astronomer Warren de la Rue and constructed in London by Andrew Ross, and was completed in 1856.