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Richmond  
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Sundial: 173
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State/Province:  Virginia |
Country:  USA |
Dial Type:  Obelisk or Vertical Gnomon |
Condition:  Good |
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Latitude and Longitude: |
37° 30.000' N  77° 30.000' W |
Location: |
- Science Museum of Virginia, 2500 W. Broad St.
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Description: |
- 'Built in 1981 after an article in Scientific American (Dec 1980 "The Amateur Scientist") described a computer program for building a gnomonic dial with analemma hour lines. The dial was painted on the museum's parking lot, using a ball atop a 25 ft aluminum flagpole as the nodus. Semi-annual analemmas were painted in different colors, allowing correction for the equation of time. The dial was refurbished June 1992.
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General Information: | Inscription: | - Owner: Science Museum of Virginia
| - Instructions for use, along with Lat/Lon of dial
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- Builder: William U. Walton, SMV staff member
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- Construction Date: 1981 renovated 1992
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References: | Web Links: |
- Scientific American, Dec, 1980 'The Amateur Scientist'
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Last Revised: 2019-07-20 17:02