Sundials - World's Oldest Clocks

North American Sundial Society

Selected Sundials of Washington

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Seattle Washington USA Vertical Dial 744
A 10 x 18 foot vertical dial on a south-facing brick wall. The hour lines are stainless steel sheet and are formed to create shadow effects that change with the position of the sun. The stainless steel Arabic hour numerals are on disks that are held on the wall by magnets, allowing them to be placed for ST or DST. A stylized school emblem is placed at the base of the gnomon. A round, two-sided plaque in the wall below describes the use of the dial.
Seattle Washington USA Vertical Dial 745
A 12 x 30 foot vertical dial on a brick wall that declines 0.5? west of south. The 5 foot stainless steel gnomon tip carries a sheet metal sculpture of an eagle, the school mascot. The hour lines are aluminum strips terminating in Arabic hour numerals. The dial face includes ceramic disks painted by school students and are placed so that the gnomon shadow falls on then on their birthday.
Seattle Washington USA Cylinder Dial 746
A unique, 10 foot tall, 2 foot diameter (base) tapered cylinder dial similar to a traditional shepherd's dial except that the cylinder orientation is fixed and the gnomon is rotated about the dial axis by the user to align with the sun. Time is read from the vertical hour and date lines. The dial is fabricated from bronze plate and is hollow. Lines are formed by individually cut hour and date line segments welded on from inside the cylinder. A lever at hand height is moved to rotate the gnomon to face the sun, providing a vertical shadow. A slit in the gnomon tip provides a more accurate sun spot on the dial face. The cylinder is tapered top to bottom for aesthetics and to minimize the effect of solar altitude variation through the seasons. Ray Monnat, father of two students at the school was the dial project leader, organizing and funding the project. Woody Sullivan, Professor of Astronomy at University of Washington was the designer, assisted by Art Teacher Peggy Dow; Larry Stark designed the turning mechanism. A plaque on the dial base shows the EOT and provides information on the dial. A depiction of the school mascot, a puma, is engraved on the rear of the dial, shown leaping through the orbit of Halley's Comet.
Seattle Washington USA Horizontal Dial 747
A 20 inch diameter cast bronze horizontal dial atop a 30 inch high one-piece stone pedestal. The dial face has cast quarter-hour marks and Roman hour numerals. The dial, built in 1912, has been refurbished and relocated several times and has a new bronze gnomon. Prof. Woody Sullivan and Kurt Kiefer did the last restoration in 2002. Dial times are inaccurate 5-7 minutes. The dial was donated by the University Class of 1912. A nearby plaque shows the coordinates and a table of EOT corrections.
Seattle Washington USA Horizontal Dial 748
A 35 foot diameter horizontal dial of concrete and stainless steel with an 8 foot gnomon. Hour marks and Arabic hour numerals are shown on the inner circle and outer ring. A meridian line has markers for solstices and equinoxes, for cardinal directions and magnetic bearings. The dial was constructed using material obtained from Boeing Surplus.
Sebastopol California USA Globe Dial 522
The sundial is a cement globe of the earth 28 inches in diameter inclined at 40 degrees, a bit off the site's 38' 20" N latitude. The globe is oriented with the site longitude on the upper meridian so that shadows across the globe represent the true sun angle at that moment. A rod through the globe casts a shadow onto the north polar regions in the summer. At the southern end is a small equatorial dial with hour lines from 8am to 4pm.
Sebastopol California USA Vertical Obelisk Dial 428
This is a vertical obelisk 3 foot on a side and 9 foot tall. It is more of a sun calendar than a sundial. The tip of the obelisk's shadow is tracked by marks on a concrete pad on the ground. The summer and winter solstices and equinoxes are indicated by tiles set in the pad.
Senatobia Mississippi USA Vertical Dial 792
A south facing vertical dial placed above a window high on a wall of a high school. The dial face includes hour lines and Arabic hour numerals 6 AM to 6 PM. The dial is a separate plate affixed to the wall. The dial may be viewed from College Street side of the building.
Sheboygan Falls Wisconsin USA Horizontal Dial 550
A 20 inch octagonal dial of bluestone on a 28 inch high base. The gnomon matches the latitude angle and the hour lines are approximate for a generalized geographic area.
Sheridan Wyoming USA Horizontal Dial 840
This monumental horizontal dial is 15 ft. in diameter sitting on a foundation of poured concrete and rebar. The dial face is etched on 4 large granite slabs from Canada. The gnomon is a 6-inch diameter steel pipe 97inches tall with a welded nodus ball and a triangular sheet beneath the gnomon that has a sun and the school logo (a mountain range) cut into it casting projected images onto the sundial face.
Sherman Texas USA Noon Meridian Dial 902
Outside the library are two stone granite guardians about 12 feet tall. They create a noon marker along a low stone wall set along the solar meridian. There are three markers rods set horizontally across the top of the wall that catch the shadow of a horizontal bar set between the two granite pillars. The shadow falls on the farthest horizontal rod on the wall at winter solstice. During the summer solstice, the shadow falls on the nearest rod to the granite block. And on the spring and fall equinox, the shadow falls on the middle rod.
Shoreline Washington USA Analemmatic Dial 796
An 8 foot diameter concrete and pebble analemmatic dial with engraved stainless steel inserts for central date line and simple instructions for use. The dial face is raised one foot on a fluted column above the perimeter concrete and stainless steel walkway and has stainless steel Arabic hour numerals for 6 AM, 12 PM and 6 PM. The walkway has stainless steel inserts showing hour lines, magnetic north, true north, winter solstice, equinox and summer solstice directions.
Shreveport Louisiana USA Horizontal Dial 138
Stone Dial vandalized. Gnomon missing, apparently knocked off with some damage to horizontal dial plate. Dial bears Roman numerals, from IV to VIII.
Sidney British Columbia Canada Equatorial Dial 682
A 20 inch diameter brass equatorial dial with equatorial, meridian and equinoctial colure rings. Gnomon has two nodus balls that may show solar position at solstices. Equatorial ring has 15-minute marks and Arabic hour numerals. The dial alignment needs adjustment for its current location. This equatorial/armillary dial in the garden of Bendt Fellenius is a family heirloom, a dial given to his grandfather Walmar Fellenius in 1946 in Sweden. The garden is private but the sundial is visible from the street.
Sidney British Columbia Canada Horizontal Dial 749
A 10 inch diameter horizontal bronze dial with hour lines, quarter hour marks and Roman hour numerals. The dial face includes a central compass rose. The dial sits atop a fluted concrete pedestal. The dial is gnomonically correct, designed for latitude.
Silver Bay Minnesota USA Horizontal Dial 227
A horizontal dial on the ground, with an hour circle about 12 feet. The gnomon is of steel, about 4 foot high. The gnomon is oriented to magnetic north. It is not an accurate device. Three boulders surround the dial and cut off the shadow much of the time. Gravel hour circle has rocks to mark the hours, but the rocks can be moved and are strewn all about. More suggestive of a dial than a real dial.
Skippack Pennsylvania USA Analemmatic Dial 650
A concrete and engraved brick analemmatic dial set in a garden of crushed rock.
Soap Lake Washington USA Dial Sculpture Dial 652
A monumental, 1-1/3 life-size bronze, steel and basalt rock sundial sculpture of a human figure with raised arm serving as a gnomon. The sculpture, "Calling the Healing Waters," depicts a young Native American couple as Father Sky and Mother Earth, sacred essence of rain and minerals connecting and bringing healing. Reflecting ethnic and historical themes, the winged warrior protects and comforts the maiden holding a catch basin for the healing waters. The sculpture was commissioned to honor the healing properties of the waters of Soap Lake.
Solvang California USA Vertical Dial 750
A cast or wrought iron vertical dial about 3 foot square painted black, prominently mounted at the roof line of the Royal Copenhagen Inn. The dial face has hour lines, half-hour marks and Roman hour numerals. The dial in not quite gnomonically correct as the building declines a few degrees west of south and the gnomon appears to be at 45? rather than 34.5?. The dial is visible from Mission Road. An interesting wind vane is seen on the roof peak above the dial.
Somerville Massachusetts USA Vertical Dial 441
This 5 foot x 7 foot vertical dial is painted onto the true south facing concrete wall of a commercial building. The gnomon and hour lines appear to be weathered copper or bronze. The hour lines are corrected for longitude, but may be in error by about 5 minutes. The dial is in relatively good condition, but the painted numerals are fading. The building itself has been in several hands over the last 10-15 years.