• Seattle Astronomical Society
• Battle Point Astronomical Association (Bainbridge Island)
• Everett Astronomical Society
• Squak Mountain Telescope (Issaquah)
• Boeing Employees' Astronomical Society
• Spokane Astronomical Society
• Tri-City Astronomy Club
• Yakima Astronomical Society

Greg Scheiderer writes Seattle Astronomy blog 

http://www.seattleastronomy.com/ 

Seattle Lighting Design Lab

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