Monday, December 20, 2010

Winter Solstice

December 20, 2010 approximately 10:00 am

September 21, 2010 approximately 12:00 pm

June 21, 2010 approximately 12:00 pm

If you've been reading this blog for a while you know that I got quite excited around the summer solstice when I found that within a few minutes of twelve noon on June 21, the only element of the decorative sun pattern on the south face of the house was the sun its self.

I've been anticipating the arrival of the winter solstice and hoping that the weather would permit a noon photo to contrast with the summer event. Tomorrow is the solstice, but the weather report is calling for clouds and snow, so I took advantage of today's clear skies to snap a few pictures of the sun on the house.

What I've noticed and am curious about is difference between the sun's shadow at the mid-summer when it was virtually centered on the gable of the south face of the house, and how now, at the winter solstice the sun is centered on the house at roughly ten in the morning. I know we in the northern hemisphere are tilted away from the sun in the winter, but I think I expected that the sun would still be centered on the house at noon, only at a lower angle. I got the angle part right, but clearly not the centered part. The photo from September shows the sun heading south already.

We'll keep our eye out in March for the next installment.

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