Hierarchy classification:

1. top of the aat hierarchies
2. Objects Facet
3. Built Environment (hierarchy name)
4. Single Built Works (hierarchy name)
5. single built works (built environment)
6. [single built works by specific type]
7. [single built works by location or context]
8. [single built works by location: topographical]
9. extraterrestrial structures

Narrower term/s

• lunar bases

Anotations

Scope note:

Use only for manned installations established on natural extraterrestrial bodies for specific functions. For larger communities established in space or on natural extraterrestrial bodies, use "space colonies." For manned artificial satellites set to revolve in a fixed orbit and serving as a base for specific functions, use "space stations."