Instrument
- 5-in Voightlander Transit Photometer2
- 60 inch Common2
- 60-inch Rockefeller Reflector2
- 61-inch Wyeth Reflector2
- 6dF3
- 7.5-inch Cooke/Clark Refractor at Maria Mitchell Observatory2
- 72cm Walz Reflector1
- 8-inch Bache Doublet2
- 8-inch Brashear Lens2
- 8-inch Draper Doublet2
- 8-inch Ross Lundin2
- 80cm Great Refractor1
- 92x92 mm solar-cell in Aluminium frame with closed electronics protected for all-weather use.1
- AAOmega1
- ACS20
- ACT2
- ANTARES2
- ANTARES 12 line1
- APOGEE-21
- ARTS4
