Sunday, November 29, 2009

Library as solar observatory

As the sunset comes sooner day by day, the point of sunset on the horizon likewise moves southward until a few days before the winter solstice. Then it starts moving back northward. The Central Library at Indianapolis provides a good place to track Sol Invictus at it travels along the horizon.

At the Central Library, sunset, November 27, 2009.

Link to sunset:

Link to sunset calculator:

Link to Central Library:

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