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Friday, October 16, 2009

And the word is . . .


On the radio last night, Kevin and i got sidetracked a bit into a discussion of the sun, started by my observation that last night's show was the first of the season to start after it was completely dark outside.

I knew that the path the sun travels in the sky throughout the year is roughly figure 8 shaped (actually more like the infinity sign, with one end larger than the other, but couldn't recall the word for this.

And that word is analemma. You can read all about it here.

And look at a pretty amazing analemma image at the NASA site. What's remarkable about this one is that one of the exposures of the sun was taken during a total eclipse.

Maybe i read about analemmas here.

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