| Observatory |
Main
Telescope |
Location |
Operator |
| Rattlesnake Mountain Observatory* |
31" Reflector |
Richland, WA |
Alliance for the Advancement of Science
Through Astronomy Note: Telescope is presently not operational
|
| Manastash Ridge Observatory |
30" Reflector |
Ellensburg, WA |
(University of Washington) |
| Edwin E. Ritchie Observatory* |
27.5" Reflector |
Bainbridge Island, WA |
(Battle Point Astronomical Association) |
| Goldendale Observatory* |
24.5" Reflector |
Goldendale, WA |
(Washington State Parks Department) |
| Pacific Lutheran University |
16" Reflector |
Tacoma, WA (on campus) |
Astronomy Dept. |
| Walla Walla College |
16" Reflector |
Walla Walla, WA (on campus) |
|
| Whitman College |
16" Reflector |
Walla Walla, WA (just outside of town) |
Physics Dept. |
| Pettinger-Guiley Observatory* |
15" Refractor |
Puyallup, WA |
(Tacoma Astronomical Society) |
| Seattle University |
14" Reflector |
Seattle, WA (on campus) |
Physics Dept. |
| Private Residence* |
14" Reflector |
Winthrop, WA |
|
| Western Washington University |
12.5" Reflector |
Bellingham, WA (on campus) |
Physics Dept. |
| Washington State University** |
12" Refractor |
Pullman, WA (on campus) |
Physics Dept. |
| University of Puget Sound |
10" Reflector |
Tacoma, WA (on campus) |
Physics Dept. |
| Whitworth College |
8" Reflector |
Spokane, WA (nine miles north of campus) |
|
| University of Washington** |
6" Refractor |
Seattle, WA (on campus) |
Astronomy Dept. |