Space vehicles
Early astronomical instruments
Observational astronomy
Binoculars
Polarimeters
Photometer
Solar instruments
Interferometers
Transit instruments
Astronomical detectors
Spectrometers
Astronomical instrumentation
The design and use of scientific instruments for detection, measurement, control, computation, and so on to observe and study astronomical objects.
Telescopes
High altitude balloons
Observatories
Stellar tracking devices
Instrumentation
Equipment and apparatus