The dots forming a curved figure-8 pattern in the sky mark where the sun appeared every day at exactly 9 a.m. local time in the small town of Veszprem, Hungary.
The photo was taken by skywatcher Tamas Ladanyi from a backyard in Veszprem. Ladanyi took 36 images of the sun throughout the year and then created a composite of the images to show the interesting pattern. This particular pattern is called an analemma.
The tilt of the Earth's axis and it's variation in speed when rotating around the sun causes the graceful figure-8 pattern.
In the analemma, the upper and lower extremes of the curve represent the summer and winter solstice dates. On the equinox dates, the sun is usually at the halfway point on this pattern between the solstices.
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Nina Sen, SPACE.com ContributorDate: 18 January 2012