Skygrid 03: Spring 2013 to Spring 2014

Data Representation

At long last, the skygrid is done. A year ago, I started the process to capture an image of the zenith sky every two minutes from 4 in the morning until 9 at night. Today the Sun crossed back into the sky of the Northern Hemisphere, and the camera on my porch took the last set of photos of the zenith. Here is the color spread of the equinoctal day:

2014-Vernal-Equinox

And here is the final yearly grid, 495 x 365, or 180,675 separate squares (click to embiggen):

Skygrid-03-Avg-140320

I will be processing another time-lapse movie of the Winter Half of the skygrid when I have time. Until then, check out the Summer Half.

Skygrid Winter Solstice 2013

Data Representation

Today was the winter solstice, and here are the day’s colors rendered in a banded strip of light, for your enjoyment:

SkygridWinterSolstice

This will be the narrowest band of colors we will see for this skygrid experiment. The daylight hours will expand until they meet with the extent we saw at the first strip, on 19 March 2014.

Happy Solstice!

Skygrid Movie: Vernal to Autumnal

Data Representation, Video

Finally had time to assemble all the individual stills of the present Skygrid into a time-lapse movie. Be advised, at 17 seconds per day, it clocks in at around 51 minutes. But it’s a perfect environmental piece for relaxation and meditation, I would say!

Note: after watching about 8 minutes of the video, I’ll concede it might be a bit flickery for meditation. The action is pretty fast, too; I’d probably want to run it at 15 frames per second to be a little more relaxing. However, that would make this half-year almost two hours, and the full year almost four. Maybe… maybe…

One fun thing is that you’ll be getting into the whole motion of the clouds and then suddenly a bird silhouette will be caught in a frame, or a glint will reflect off of a plane, or there’ll be a leaf floating by momentarily.

The Equinoctal Picture for the Skygrid

Data Representation

The Sun crossed the ecliptic today at 4:44pm EDT, heading south. My skygrid camera was there to capture the moment, along with a plane flying overhead:

Autumn-Equinox

I’ll be processing the images soon so we can see the full wax and wane of the daylight hours. Funny thing: it’s no longer an Equinoctal Skygrid. Because it’s reasonably automated, I’ll continue taking footage until next March, for an Annual Skygrid.