This movie shows active region 11944 during the days 2 to 5 January 2014. There are many sunspots that together make up the region; all of which are changing over time. One spot dominates the group. It is especially large with a very dark centre - called the umbra - that grows as a smaller spot joins it. The outer region of the spot - the penumbra - is very dynamic with many moving features.
The movie was created with JHelioviewer.
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