Ohio
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Oberlin |
Ohio |
USA |
Vertical Dial |
Dial 219 |
| Once, high on the physics building south wall was a student made vertical dial. The 5'x8.5' resin coated particle board made by Mark Kearns in 1979 had curved hour lines to account for the equation of time, declination of wall, and offset from standard meridian. This dial has not been on display for some time. Perhaps some student would create a new dial. The brick wall is an excellent location. |
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Ocean Shores |
Washington |
USA |
Horizontal Dial |
Dial 842 |
| This large horizontal dial has a gnomon in the shape of an anchor and concrete minimalist dial surface in the shape of a triangle, keeping the theme of the location "Triangle Park". Three time Arabic hour numbers of 9, 12 and 3 are embedded into the concrete slab and two other time marks of 6am and 6pm are on separate pads located outside the main dial area. |
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Ogunquit |
Maine |
USA |
Horizontal Dial |
Dial 1111 |
| This is an elegant commercially made bronze horizontal dial about 18-inch (.46 cm) in diameter. The Chapter Ring has hours from 5am to 7pm, divided in quarter hours. Hours are marked in Roman Numerals from VI to VI. A bird sits profile in the gnomon, filling the space beneath the style. The gnomon foot is accurately placed to a line between VI-VI, but the gnomon angle was not measured. The dial rests on a polished brown granite pillar. At the base of the pillar is a small bronze plaque. |
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Oliver |
British Columbia |
Canada |
Horizontal Dial |
Dial 809 |
| A lovely horizontal dial with an 8-foot high stainless steel gnomon. The hour lines are done as colorful alternating red and cream segments set in a 8-foot radius semi-circle. The gnomon is triangular in cross section with a single thin edge casting the shadow. The dial hour numbers are set for daylight, since all of the winery's 100,000 annual visitors are seasonal, coming when Pacific Daylight Time is in place. |
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Olympia |
Washington |
USA |
Horizontal Dial |
Dial 319 |
| John W. Elliot, a Seattle master craftsman designed and execute the Territorial Sundial. The 6 foot dial is hand-hammered in brass with a bronze rod gnomon. The dial plate has eight bas-relief panels depicting events in Washington State's history including the discoveries of Captain George Vancouver in 1792, the Medicine Creek Treaty between the US and Puget Sound Native Americans in 1854 and the first railroad to Puget Sound, built in 1883. The dial rests on a large slab of Wilkenson sandstone, the same material used in the nearby State Library, supported by four, one foot nine inch tall piers. |
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Omaha |
Nebraska |
USA |
Horizontal Dial |
Dial 598 |
| A 7.5 foot diameter horizontal dial of water jet cut sheet bronze and cast bronze side molding with a 45 inch high gnomon. Very large Roman numerals show hours from 10 AM to 5 PM in Daylight Saving Time with longitude correction. The bronze dial rests on a short concrete and brick pedestal. |
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Omaha |
Nebraska |
USA |
Equatorial Dial |
Dial 653 |
| A five foot granite equatorial dial on a granite and stone pedestal with a 5 inch diameter stainless steel gnomon extending through the dial face. Arabic hour numerals for 4 AM to 9 PM are shown on the north face and for 6 AM to 7 PM on the south face. Dial is within the Henry Doorley Zoo which may require admission to see the dial, which is a memorial to Marcia Bekins Shepard. Dial sits on a granite disk atop a mortared stone pedestal. |
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Omaha |
Nebraska |
USA |
Horizontal Dial |
Dial 654 |
| A cast bronze horizontal dial with Roman hour numerals and fifteen-minute marks on a pedestal in a stone courtyard. Dial face includes a depiction of an hour glass with wings and a motto, GROW OLD ALONG WITH ME THE BEST IS YET TO BE. Dial sits on a three foot high fluted circular cast pedestal. |
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Omaha |
Nebraska |
USA |
Armillary Sphere |
Dial 655 |
| A five foot diameter stainless steel armillary dial with central gnomon rod and equatorial, horizon, meridian and equinoctial colure rings. CST and CDST hours are marked with Arabic numerals. The dial rests on a polished black granite base of two supporting arms. The dial is located at the center of the Robert H. Storz Family Rose Garden within Lauritzen Gardens. Dial sits atop a two-arm polished black granite base approximately 4 feet tall.
Viewing the dial requires paid admission to the Gardens. |
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Omaha |
Nebraska |
USA |
Horizontal Dial |
Dial 665 |
| A bronze horizontal dial with 5 AM to 7 PM hour lines and Roman numerals. Placed on a cast concrete pedestal 3 feet high in the form of a tree trunk with an image of a bird cast into the base. |
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Omaha |
Nebraska |
USA |
Analemmatic Dial |
Dial 667 |
| A 20 foot square dial painted on concrete. Painted hour markers in two arcs for ST and DST include longitude correction. A nearby plaque provides instructions for use of dateline but has the hour marker arcs miss-labeled for ST and DST. |
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Opp |
Alabama |
USA |
Equatorial Dial |
Dial 893 |
| This 2-foot diameter equatorial disk is of quarter-inch aluminum plate with hourly time marks cut through with slots. Shorter slots mark half our and fifteen minute intervals. The noon mark is surrounded by short holes made at five minute intervals. At the top of the dial is a cut fleur de lis. |
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Opp |
Alabama |
USA |
Equatorial Dial |
Dial 895 |
| An equatorial sundial made of diesel engine parts by the students of Lureen B. Wallace Community College, under the guidance of Eddie Spann, instructor for diesel and heavy equipment and designed by the college president, Dr. Herbert Riedel. The stand is a crankshaft from a Cummins engine, while the dial base and dial faceplate are flywheels. The gnomon is a heavy duty diesel cylinder liner puller. The gear teeth on the faceplate mesh with a small gear to allow easy adjustment for the equation of time. Hours are marked by bolts, and on the winter side are painted hour numbers. |
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Orange |
Massachusetts |
USA |
Vertical Dial |
Dial 527 |
| A vertical sundial built from Eastern White Pine local-grown timber. The dial face is 35x44 inches and the gnomon is a 3 inch long aluminum rod. Hour lines include analemmas and the spring and fall lines are painted different colors with corresponding dates identified. Solstice and equinox lines are shown. |
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Orlando |
Florida |
USA |
Obelisk or Vertical Gnomon |
Dial 294 |
| Bronze, granite An obelisk which, at the noon hour, will cast a shadow on a noon mark plaque positioned on the ground. |
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Orlando |
Florida |
USA |
Horizontal Dial |
Dial 37 |
| This plain dial formed on a concrete base has an elegant gnomon, designed with an interior curve and oval. But alas, don't go to Florida to find it. Sometime in 2013 as Harcourt closed its Florida office, the new tenet had no use for the sundial and had it scheduled for demolition. |
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Orlando |
Florida |
USA |
Pillar Dial |
Dial 89 |
| Reconstruction of a 4-sided pillar dial. |
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Oro Valley |
Arizona |
USA |
Compound Dial |
Dial 713 |
| A massive, 24 foot [7.3m] tall combination almost-vertical and calendrical dial facing southwest so that northeast bound traffic can easily view the dial. The 13 foot [4m] diameter vertical ring dial of welded, zinc-coated steel declines 45 deg west and reclines 12 deg from vertical. The 3 inch [7.6cm] diameter, 20 foot [6m] long polar-pointing gnomon rod is supported in space by a 10 inch [25cm] diameter support tube with a cone nodus on the bottom end. The vertical dial shows longitude-corrected MST with hour and half-hour marks and Arabic numerals on the outer stainless steel chapter ring. |
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Oro Valley |
Arizona |
USA |
Analemmatic Dial |
Dial 871 |
| This analemmatic sundial is painted on concrete. It is similar to John Carmichael's human sundial at Flandrau Planetarium at the University of Arizona. The orange background was painted by hand with acrylic paint on top of the blue acrylic court surface. Lettering and other markings were painted with Rustoleum spray enamel using stencils from Stencilease.com. Final touch up painting was done by hand. It took a three man team ten days to paint. It's quarter hour time marks are longitude corrected and shows Standard Time when readings are adjusted using the Equation of Time. It includes a central Date Line for standing, using monthly and weekly marks. There is a Solar Noon mark, and Bailey Points to indicate the direction of sunrise and sunset. |
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Orosi Valley |
Cartago |
Costa Rica |
Obelisk or Vertical Gnomon |
Dial 761 |
| A 25 foot long point-in-space or nodus dial. The horizontal dial face is cuartilla (crushed stone). The 8 AM - 4 PM hour lines are red adoquines (bricks) and the noon hour line is lodged between gray adoquines. The dial equinox line is a row of gray adoquines. Solstices are identified by the curve formed by the tips of the hour lines. The gnomon atop a 1.8 m high vertical rod is a 21 cm diameter sphere, hand carved out of gabbro, a rock formed from molten magma. It is a replica of bolas de piedra (stone balls) created a thousand years ago by the local Diquis indigenous people and discovered in 1930. |
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Ottawa |
Ontario |
Canada |
Horizontal Dial |
Dial 827 |
| This sundial is a memorial for W T Macoun. The dial is a simple bronze horizontal sundial, about 12 inches in diameter. It shows solar time with hour lines from 4 am to 8 pm. Hour marks are Roman numerals. The design accounts for the thick gnomon. The stone octagonal base is about 40 inches high |
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Ottawa |
Ontario |
Canada |
Horizontal Dial |
Dial 833 |
| A garden variety round horizontal sundial about 12 inches in diameter. It looks like a bronze casting with iron staining from steel bolts. Hours marks only from VI to VI (6 am to 6 pm). The dial is located in a very shaded spot close to a building and surrounded by trees. Ornamental. Dial plate has inscription "Tempus Omnia Revelat" (Time Reveals All). |
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Ottawa |
Ontario |
Canada |
Horizontal Dial |
Dial 10 |
| A bronze 12 inch diameter horizontal dial with hour lines from 4 AM to 8 PM and engraved Roman hour numerals and compass rose. This restoration was donated by Thomas Ritchie who remembered from his youth that the original dial was accidentally destroyed during the construction of the Parliament Library in 1872. The restored dial was unveiled May 19, 1921 by the Governor General, Sir Victor Cavendish, Duke of Devonshire.Dial sits atop light granite pillar approximately 18 inches diameter and 40 inches high. |
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Ottawa |
Ontario |
Canada |
Vertical Dial |
Dial 127 |
| Two vertical declining dials declining 58.1° west and 31.9° east on adjacent sides of the south corner of the Sisters of Charity of Ottawa Mother House. The western dial is approximately 7x8 feet and the eastern dial is approximately 7x4 feet. The dials are of gray plaster with black painted iron gnomons. The dials decline 58.1? west of south and 31.9? east of south. The western dial has hour lines from 10 AM to 7 PM and the eastern dial has hour lines from 7 AM to 3 PM. These dials predate the use of time zones and show local solar time. |
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Ottawa |
Ontario |
Canada |
Horizontal Dial |
Dial 230 |
| A large horizontal floral dial approximately 20 feet in diameter. Large circular area on ground forming the dial face with gravel and flower-beds between the hour lines. The flowers are annuals, best seen in the summer blooming season. Update June 2018: The dial has been refurbished with a new, accurately placed gnomon and wonderful bright flowers. |
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Ottawa |
Ontario |
Canada |
Vertical Dial |
Dial 1106 |
| A 1.2m (47 in) wide by 0.7m (28 in) high vertical sundial that declines 5 degrees to the west of south. Hour lines are longitude-corrected. The dial face was laser cut from a large 3mm (1/8 in) thick plate of steel and powder coated with white paint. The cut-out pieces of the steel sheet were beautifully assembled together and mounted near the front door of the house. A conic gnomon was selected to point to the hour lines from 9am to 6pm summer hours. |
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Ottawa |
Ontario |
Canada |
Sun Alignment |
Dial 739 |
| A memorial alignment dial that illuminates the headstone of the Unknown Soldier on Remembrance Day, November 11 at 11:00 AM, commemorating the end of World War I. Remembrance Day is celebrated on the 11th hour of the 11th day of the 11th month of each year. |
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Ottawa |
Ontario |
Canada |
Globe or Hemispheric |
Dial 449 |
| This hemispherium dial is a dramatic modern sculpture. The 32 inch quarter hemisphere is carved into the edge of a 40 inch cube of dark granite tilted to conform to its latitude of 45.5° , and set upon a rough concrete pedestal of slightly smaller dimension. The gnomon is a |
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Owasso |
Oklahoma |
USA |
Analemmatic Dial |
Dial 961 |
| This is a nicely done 12 x 6 foot analemmatic. The time ellipse is white concrete with black hour marks using Roman numerals. Time is adjusted for longitude and daylight savings time. The walkway has black month marks and an explanation plaque. |
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Oxford |
Ohio |
USA |
Armillary Sphere |
Dial 103 |
| A 6 foot armillary sphere sitting on a marble column supported by a ring of turtles. The armillary has equatorial, meridian, polar and equatorial rings, plus the arctic and antarctic rings near the poles. Along the outside of the equatorial ring are golden figures, marking the houses of the zodiac. On the inside of the equatorial ring are Roman numerals marking the hours. The armillary was a gift to the university on its 50th anniversary by the Miami chapter of Delta Delta Delta sorority. The plaque given coordinates of latitude and longitude of the dial that are slightly different than those from Google Earth, which are the coordinates given here. |
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Oxford |
Michigan |
USA |
Armillary Sphere |
Dial 1093 |
| This is an armillary of unusual construction, mostly of nicely prepared wood. The base has three legs set out at 120°, holding horizon ring approximately 1m (39 inches) in diameter. An adjustable meridian ring for any latitude holds a brass polar axis rod and a cylinder for reading various time scales. The horizon ring has azimuths marked at every 5° and labelled every 15°. Interior to the horizon ring is the earth's celestial equator marked in right ascension in both hours and degrees. The equatorial ring ais connected to an umbrella-like portion of the north celestial pole, showing the position of the Big Dipper and Polaris. |
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Palisades |
New York |
USA |
Equatorial Dial |
Dial 410 |
| An equatorial dial in bronze. Has analemma at the noon hour mark. Lamont-Doherty Sundial Fountain. |
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Palm Beach |
Florida |
USA |
Horizontal Dial |
Dial 637 |
| A bronze horizontal dial approximately 24 inches square on a painted masonry pedestal. Inner hour circle shows Arabic numerals for standard time and outer hour circle shows Roman numerals for local time. Dial face includes cardinal direction marks and coordinates. An EOT table is provided in an adjacent bronze plaque atop the pedestal. Dial is located on the entrance walkway to the Flagler Museum, formerly known as Whitehall, Henry Flagler's private home. Museum is open to the public but requires an entry fee. |
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Palo Alto |
California |
USA |
Horizontal Dial |
Dial 900 |
| This horizontal bronze dial is 14.5 inches in diameter, mounted on a fluted pedestal. The gnomon angle is set for the latitude and is 5 5/8 inches tall. Graceful hour lines extend from 5am to 7pm marked by Roman numerals. It is delineated only with half-hour lines. Surrounding the dial face is a zig-zag decoration. |
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Palo Alto |
California |
USA |
Vertical Dial |
Dial 482 |
| A vertical declining dial approximately 45 x 55 inches. Made of aluminum and brass. Shows the hours from 8 am to 5 pm using analemmas. Analemmas are bounded by the summer and winter solstices and a straight line through them shows the equinox. Daylight time is shown using Roman numerals, with standard time shown in Arabic. In keeping with the motto, a simple equation is written on the dial face, d/dt is not equal 0.
Designer Ronald Bracewell used an oculus, a disk with a central hole, standing 8 cm in front of the dial face. The disk casts a shadow with a bright sunlight dot to indicate both time and season. Hour lines include longitude correction.
This has been relocated; it was previously hanging free below a south facing wall, facing the Terman Engineering Building. Dial is now located on the wall of a covered walkway area. |
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Palo Pinto |
Texas |
USA |
Horizontal Dial |
Dial 890 |
| The 21 inches in diameter sundial started as a sculpture. A call went out to the boy and girl scouts (and alum men and women) to contributed fossils, and other artifacts. This included an arrowhead found at camp. These objects were incorporated into the finished wax, with the arrowhead embedded on the style edge at the very tip of the gnomon. A mold was taken of the completed sculpture and used to create a casting wax replica of the sculpture. |
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Palos Verdes Estates |
California |
USA |
Armillary Sphere |
Dial 740 |
| A 1.5 meter diameter bronze armillary sphere atop a beige stone pedestal at the center of a 9 meter diameter pond or fountain. The Armillary includes meridian, equatorial and horizon rings as well as Arctic and Antarctic circles. The equatorial ring is perforated with Roman hour numerals and Zodiacal symbols. The central gnomon rod has a ball at the north end and an arrow tail at the south end. |
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Paramus |
New Jersey |
USA |
Horizontal Dial |
Dial 331 |
| A ground level horizontal dial constructed from a rim of ten interlocking concrete pieces each 33 inches long. The interior is filled with an irregular concrete pieces whose edges form the hour and half-hour lines. The gnomon is iron, 51 inches from base to tip of style. The gnomon interior has a bronze statuette in the shape of a griffin taken from George Washington's coat of arms. The dial was stolen and replaced in early 1980's. |
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Park City |
Kentucky |
USA |
Horizontal Dial |
Dial 314 |
| A beautiful horizontal dial 25 inches in diameter with a 9 inch gnomon. Has hour and half hour lines from 5 am to 7pm with 10 minute marks. South of the gnomon is an intricately engraved Great Seal of The United States of America. The dial is of Coconino sandstone and sits on a brick surround. |
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Parma |
Ohio |
USA |
Armillary Sphere |
Dial 580 |
| A three foot armillary sundial with equatorial ring and gnomon pointer on a stone base with dedication plaque. Dial was built by the local high school vocational welding class in 1988. |
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Pasadena |
California |
USA |
Analemmatic Dial |
Dial 643 |
| A 14x8 foot analemmatic dial with an 8x2 foot gnomon-positioning calendar plinth. The dial is installed in the pebble and concrete patio of the Winnett Student Center. The hour markers and calendar line plinth are made of Granodiorite of Knowles, a muscovite-bearing biotite granodiorite rock quarried from Knowles Quarry at Raymond, California. A nearby wall plaque provides longitude and EOT correction. The dial is a gift from the Caltech Alumni Association as a sculpture, a public artwork and a scientific instrument. This dial is located on the private university campus but the public may walk on the campus grounds to view the dial. |
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Pearl City, Oahu |
Hawaii |
USA |
Horizontal Dial |
Dial 535 |
| A 28 foot stone horizontal dial with 8 foot high black wood and fiberglass gnomon located in a children's Sundial Garden. Hour markers are Roman numerals cast into concrete blocks. Dial is screened by koa and lonomea trees. |
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Pekin |
Illinois |
USA |
Horizontal Dial |
Dial 233 |
| Two sundials. One is a horizontal sundial 6-ft. tall with a sloping 15-ft bright aluminum gnomon. The dial is called "Sundance". Adjacent is a gnomonic sundial with a 45-ft pole projecting its shadow onto the lawn in front of it. The ground level dial face consists of seven analemmas drawn in the grass field that surrounds the dial center. The analemmas are drawn for the hours 8 am to 3 pm. However, the noon analemma is larger and corresponds to the shadow of a disk atop the vertical pole. |
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Pelham Manor |
New York |
US |
Vertical Dial |
Dial 901 |
| This south facing vertical dial is 4x2 feet made of concrete, now slightly brown with age. The graceful gnomon is white-painted metal. Hour numbers in Roman numerals extend from 6am to 6pm without further delineation. |
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Pella |
Iowa |
USA |
Armillary Sphere |
Dial 1098 |
| An elegant armillary sphere approximately 8 ft (2.5m) tall. Painted black with gold Roman numerals for the hour marks. On the outside of the equatorial ring at each hour are embossed zodiac figures The gnomon is a traditional arrow with gold tip and feather. The dial has traditional arctic and antarctic rings. |
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Pennington |
New Jersey |
USA |
Cylindrical Dial |
Dial 803 |
| This is an adaptation of the dual cylindrical sundial design by Hoffmann Albin of Butgenback, Belgium that provides for two separate dials to be displayed. In this variation, the two dials are separately displayed after being rotated and locked into viewing position every six months on the solstices. Except for two bronze sleeve bearings, all parts are 304 stainless steel that has been glass bead blasted to reduce reflection, machined, welded or laser cut. The analemmal hour lines, equinox and month lines are laser etched into the stainless steel dial plates. The dials and their supporting cradles are 12 gauge with 12" diameters. The post is 1.75" in diameter. |
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Penticton |
British Columbia |
Canada |
Analemmatic Dial |
Dial 240 |
| This analemmatic dial, the "Skaha Solar Timepiece", dates from 1984 and spans an area of 65' x 35'. At the center is a platform marked out with a steel analemma, acting as the date scale. The steel is embossed with a date scale and zodiac. The hour and cardinal direction markers are concrete posts, installed in 1998 to replace the rotted originals. The size and positioning of the analemma is somewhat mismatched to the placement of concrete markers, but overall it is a well-made piece in a pleasant setting. A nearby explanatory plaque claims, incorrectly, that this is the third-ever analemmatic sundial in the world. |
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Peoria |
Arizona |
USA |
Horizontal Dial |
Dial 939 |
| This wonderful sculpture of a hummingbird serves as the gnomon for an 18 foot diameter horizontal sundial. The sundial sculpture was inspired by the beauty of the hummingbird with many species of them living and thriving in Arizona. The gnomon stands 7-feet tall with intricate aluminum frets welded together to give both depth and warmth to the hummingbird. Surrounding the gnomon are 150,000 Vetriluxe one-inch square glass mosaic tiles in bright colors depicting a flower where the bird sucks nectar. Inlaid into the tile work are Arabic hour numbers from 6am to 6pm as well as the cardinal points. |
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Peoria |
Illinois |
USA |
Horizontal Dial |
Dial 607 |
| An 18 inch octagonal horizontal dial of cast bronze. The dial face includes hour lines with ten minute marks and Roman numerals. The dial is on an octagonal polished granite pedestal. The bronze gnomon is correctly set at 40? but appears to be more modern than the cast dial face. This is one of two "sister" dials ordered cast by Grant Hood; the second dial was placed at Bradley School of Horology but later disposed and now in private ownership in Lynchburg, Virginia. |
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Perryville |
Missouri |
USA |
Horizontal Dial |
Dial 882 |
| The square 14.5-inch dial is made of while milk stone with graphics highlighted using lithochrome paint. The gnomon is made of stainless steel 303-alloy and has the letter P held between the base and style. The dial sits upon a square frustrum pedestal 3-feet tall, 24-inches square at the base, tapering to 17.5-inches at the top. The pedestal is supported on a 32-inch square base. |
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