Theodor Jacobsen Observatory
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Theodor Jacobsen Observatory (2006) | |||||
| Organization | University of Washington | ||||
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| Location | Seattle, Washington, United States | ||||
| Coordinates | 47°39′38″N 122°18′33″W / 47.660432°N 122.3092°WCoordinates: 47°39′38″N 122°18′33″W / 47.660432°N 122.3092°W | ||||
| Established | 1895 | ||||
| Website | http://www.astro.washington.edu/observatory/ | ||||
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The Theodor Jacobsen Observatory is the on-campus observatory of the University of Washington. Built in 1895, it is the second oldest building on campus and was constructed using the remaining Tenino sandstone blocks from Denny Hall, the oldest and first building on campus. The refracting telescope, enclosed within the dome, has a 6-inch Brashear objective lens on a Warner & Swasey equatorial mount. The observatory also includes a transit room on the west side and a 55-seat classroom, which was built later, on the south side.
Today, the observatory is primarily used for public outreach and is run jointly by the UW Department of Astronomy and the Seattle Astronomical Society. Every first and third Wednesday between March and November the observatory is open to the public.
The observatory is listed on the State Register of Historical Buildings.
Information on the original design and building of the observatory by Prof. Joseph Marion Taylor may be found on the University of Washington Astronomy Department website and other sources.