| AAO - Anglo-Australian Observatory |
AAT, UK Schmidt |
| Canadian Observatories |
CASCA |
| Chandra X-ray Observatory |
CfA, NASA, SAO, HEASARC |
| CTIO - Cerro Tololo Inter-American Observatory |
NOAO, Blanco, SOAR, Gemini South |
| ESA - European Space Agency |
PLANCK, XMM-Newton |
| ESO - European Southern Observatory |
La Silla, Paranal |
| Gemini Observatory |
Canadian Office |
| W. M. Keck Observatory |
|
| Lick Observatory |
UC Observatories |
| Lowell Observatory |
|
| Mauna Kea Observatories |
Keck, CalTech, University of California |
| MDM Observatory |
|
| MPIA - Max Planck Institute for Astronomy |
LBT, Calar Alto |
| Mount Wilson Observatory |
|
| NOAO- National Optical Astronomy Observatory |
KPNO, Gemini, WIYN, Instrumentation |
| NRAO - National Radio Astronomy Observatory |
ALMA, Green Bank, VLA, VLBA |
| OCIW - Observatories of the Carnegie Institute of Washington |
Magellan |
| OVRO - Owens Valley Radio Observatory |
CalTech, VLBA |
| Palomar Observatory |
CalTech |
| SAAO - South African Astronomical Observatory |
SALT |
| SAO - Smithsonian Astrophysical Observatory |
1.2-meter, 1.5-meter, MMT, CfA, Whipple |
| SARA - Southeastern Association for Research in Astronomy Observatory |
|
| SMARTS - Small & Moderate Aperture Rsrch. Telescope Sys. |
|
| Spitzer Science Center |
SST |
| STScI - Space Telescope Science Institute |
HST, JWST, ACS, NASA |
| Steward Observatory |
Bok, LBT, Magellan, MMT, SMTO,VATT |
| WIYN - Wisconsin Indiana Yale NOAO Observatory |
|
