Ladd Observatory
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| Organization | Brown University | ||||||||||||||||||||||||||
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| Location | Providence, Rhode Island, USA | ||||||||||||||||||||||||||
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| Altitude | 226 feet (69 m) | ||||||||||||||||||||||||||
| Weather | See the Clear Sky Chart | ||||||||||||||||||||||||||
| Established | 1891 | ||||||||||||||||||||||||||
| Website | Ladd Observatory | ||||||||||||||||||||||||||
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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.[1]
Contents
History
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.[2]
Telescope
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.
Timekeeping
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.[3]
Associations
Astronomers associated with Ladd include Winslow Upton. Frank W. Very, Frederick Slocum, 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.[4]
See also
References
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External links
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Wikimedia Commons has media related to Ladd Observatory. |
- Ladd Observatory blog
- Ladd Observatory Clear Sky Chart Forecasts of observing conditions.
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- Pages with broken file links
- Commons category link is defined as the pagename
- Astronomical observatories in Rhode Island
- Brown University buildings
- Infrastructure completed in 1891
- Buildings and structures on the National Register of Historic Places in Rhode Island
- Visitor attractions in Providence, Rhode Island
- Education in Providence, Rhode Island
