Ladd Observatory
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| Organization | Brown University | ||||||||||||||||||||||||||||
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| Location | Providence, Rhode Island, USA | ||||||||||||||||||||||||||||
| Coordinates | 41°50′20″N 71°23′57″W / 41.83889°N 71.39917°W | ||||||||||||||||||||||||||||
| Altitude | 226 feet (69 m) | ||||||||||||||||||||||||||||
| Weather | See the Clear Sky Chart | ||||||||||||||||||||||||||||
| Established | 1891 | ||||||||||||||||||||||||||||
| Website | Ladd Observatory | ||||||||||||||||||||||||||||
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| Brashear / Saegmuller | 12" refractor |
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| Saegmuller | 80 mm transit instrument |
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Ladd Observatory
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| Location | Providence, Rhode Island, USA |
| Coordinates | 41°50′20″N 71°23′57″W / 41.83889°N 71.39917°WCoordinates: 41°50′20″N 71°23′57″W / 41.83889°N 71.39917°W |
| Built | 1891 |
| Architect | Stone, Carpenter & Willson |
| Architectural style | Classical Revival |
| NRHP Reference # | 93000583 |
| Added to NRHP | June 6, 2000 |
The Ladd Observatory is an astronomical observatory of Brown University in Providence, Rhode Island, USA. The observatory was dedicated in 1891 and is named for benefactor Herbert W. Ladd who funded the construction.
Ladd Observatory was designed by the Providence-based firm of Stone, Carpenter & Willson. The building was added to the National Register of Historic Places in 2000.
The main telescope is a 12-inch (30 cm) refractor with a lens made by John Brashear following the design of Charles S. Hastings. The equatorial mount and mechanical clock drive were made by George N. Saegmuller.
Besides astronomical research and education, Ladd sent out a time signal for decades. When they decided to stop the service in the 1970s, they discovered that nobody was actually receiving it.
Astronomers associated with Ladd include Winslow Upton, Frank W. Very, Frederick Slocum, Robert Horace Baker, and Charles H. Smiley.
H. P. Lovecraft had free access to the observatory for several years and wrote astronomy articles for Providence newspapers based upon his study there between 1906 and 1918.
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Wikipedia