Northeast 45th Street and 17th Ave Northeast
Seattle, WA 98195
The Theodor Jacobsen Observatory is the second-oldest structure on the campus. Built in 1895, the Observatory with its 120-year old, 6-inch refracting telescope is still offering celestial views of the wonders of the Universe. Here you will find information on opened nights, making reservations, a history of the telescope, a history of astronomy at the UW, and even an operating manual for the telescope.