Equinox

In the park down the street from us, Wichita has a very cool piece of public art that is especially neat four times each year: a solar calendar. In the tradition of many ancient cultures, a couple of artists here in Wichita collaborated to construct an accurate solar calendar that clearly marks the two equinoxes and two solstices that occur each year.

The piece has several stone pillars throughout the area but there is one central stone pillar and it has a steel and glass orifice mounted at its peak (make to look artistically similar to a human eye).




This orifice casts an eye-shaped shadow (with the pupil being open) on the ground and as the sun moves throughout the day and year, so does this shadow. The artists have also placed on the ground three marker stones with tennis-ball sized glass discs mounted on the surface such that at "high noon" on each solstice and equinox the pupil of the eye lands exactly on the glass disc and illuminates it. Think of Indiana Jones in "Raiders of the Lost Ark" but without all the special effects.

Well, today was the day after the equinox and a small crowd gathered at the solar calendar to see the show. (Yesterday being a work day, I'm assuming the turn-out wasn't as good). Due to daylight savings, "high noon" was around 1:30 or so and there was probably about two dozen people there. We were also blessed to have the artists show up for the event which I really enjoyed. Since celestial event itself was rather slow-paced and predictable, they were able to explain how they constructed the piece and explain some of the more esoteric artistic references. (All of the pillars are decorated with painted tiles meant to allude to the various ancient methods of time-keeping).

As it turned out, being one day late for the event meant the shadow was slightly out of place. The artists said that the equinoxes are the most precise and every day counts but around the time of the solstices, the eye appears to land exactly on the glass for several weeks.



Here's the view of the glass target stone looking back up towards the eye.



The next event is on December 21st at the winter solstice and it should be easier to see the eye exactly on the eye (as long as it isn't cloudly). The artists also mentioned they had another project in the works for a larger, calendar/time-piece for the county park here in Wichita. Considering they just got this one done in 2004, I'm surprised and pleased that they would be able to do something similar so quickly. Maybe Wichita isn't as un-cultured as I thought.