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Sunset Anomaly (Posted on 2016-03-09) Difficulty: 2 of 5
The cover of the June, 1979, issue of Sky and Telescope magazine had a 38-minute time exposure photo showing the setting sun over Boston harbor. It was taken on September 25, 1973, three days after the equinox.

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As the sun is then south of the equator, the sun's path in the sky should be an arc of a lesser circle (as opposed to a great circle, which would appear as a straight line on a photograph) centered on the south celestial pole, which is below the horizon, to the left (south). As a result, the concave side of the path should be toward the bottom/left. However the picture shows its concave side is on the top/right, toward the north celestial pole. What happened?

See The Solution Submitted by Charlie    
Rating: 3.0000 (1 votes)

Comments: ( Back to comment list | You must be logged in to post comments.)
Hi | Comment 1 of 3
Nice one
  Posted by Ezequiel havelles on 2016-03-10 00:54:55
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