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Jacobsen Observatory

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Theodor Jacobsen Observatory

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TJO Newsletter

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TJO Public Events

Talk Schedule and Topics

Make Reservations


Astronomy for the Sight Impaired


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Welcome to the Theodor Jacobsen Observatory

Star Ball

Welcome to the Theodor Jacobsen Observatory, the second-oldest structure on the campus. Built in 1895, the Observatory with its 110-year old 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. Come join us in a tour; there is no charge to learn about and view the night sky!


Evening Public Shows

Wednesday evenings throughout the Spring, the Astronomy department will be hosting public events at either the UW Planetarium or the Theodor Jacobsen Observatory. The public viewing at Jacobsen Observatory continues, as usual, through the summer and early fall:

TJO Hours
March: 7 - 9 pm
April through September: 9 - 11 pm
October, November (1st Weds only in Nov.): 7 - 9 pm

The talk on a given evening starts approximately minutes after opening and takes place in the classroom that adjoins the Observatory. If the sky is clear enough, the dome will be open for viewing celestial objects through the ancient telescope. Additional exhibits and activities are found in the Transit Room, Pillar Room, and outside. We will also have various small telescopes set up on the grounds of the Observatory and a scale model of our solar system. Reservations are strongly recommended for the talks; no reservations are needed to tour the Observatory and take part in the exhibits, activities, and viewing.

Seattle Astronomical Society members operate the ancient refracting telescope in the dome and can find fascinating treasures of the night sky. Their members are an endless source of information and enthusiasm about astronomy.


TJO in the news

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