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7/21/2018 Sun Circle | Chris Tanz Design
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Sun CircleAn Archeo-astronomical Monument
The Sun Circle is a ceremonial structure in a public park. In it you can observe the sun’s movement along the horizon over the course of the year.
Eight curving walls create a kiva-like circle which was inspired by the ruins of Casa Rinconada, the great kivaat Chaco Canyon in New Mexico, an archeoastronomincal monument,.
Six of the walls have small windows oriented to sunrise and sunset at the summer and winter solstices, and thespring and fall equinoxes.
On those occasions, sunlight passes through the window of one wall and dances along a marked path on a facingwall and across the floor of the circle.
Sunrise on the spring equinox ⇓
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7/21/2018 Sun Circle | Chris Tanz Design
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When the sun rises on the winter solstice, light pierces through the window in the southeast wall and projects amatching trapezoid of light onto the facing wall. ⇓
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7/21/2018 Sun Circle | Chris Tanz Design
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At sunrise and sunset, patches of light follow the tracks marked on the walls and on the floor of the Sun Circle. (Thanks to Wes Holden for the time-lapse images.) ⇓
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People on the bike path can stop and take a rest. ⇓
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Or have a picnic ⇓
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People can sit ⇓
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or jump ⇓
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or measure the precision of the solar tracking ⇓
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Or drum up the sunrise ⇓
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Or cast shadows on a wall ⇓
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Sun Circle
An Archeoastronomical Monument Tucson, Arizona
Rillito River Park – between La Canada and La Cholla, at Roller Coaster Wash.
In collaboration with Paul T. Edwards and Susan Holman and Will Grundy, Planetary Scientist
Medium: Split-face block, flagstone, concrete (smooth and exposed aggregate), sunlight.
Percent for Art Program, Pima County Parks and Recreation and the Pima County Regional Flood Control District.
1994
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Sun CircleMany-Color MountainPlay Ball!Silver LiningsSand TroutWater to Waterearth/heartThe Water Table: A life-sized chartStrata: Gateway to the CatalinasA Gneiss Bench to Sit OnJoining Hands
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