| Wilhelm-Foerster-Sternwarte (Berlin, Germany) |  |
| Bayerische Volkssternwarte München (Munich, Germany) |  |
| Archenhold
Observatory (Berlin, Germany)
- featuring the world's longest refractor! |
 |
| Eastbay Astronomical Society (Oakland, CA) |  |
| Tri-Valley Stargazers (Livermore, CA) |  |
| Cederberg Observatory (Western Cape Province, South Africa) |
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