A large group of sunspots that rotated across the Sun from Aug. 21 to Aug. 26 started out as a single cluster, but gradually separated into distinct groups. The still image shows the separated group as it appeared on Aug. 26.

(Solar Dynamics Observatory/NASA)

From Aug. 21 to Aug. 26, the large group of sunspots scientists known as AR2403 were visible. They have since rotated out of view, but provided a spectacular sight.

NASA reported that as the sun rotated on its axis, they appeared to move across its visible face, into more distinct groups.

According to EarthSky.org, AR2403 , which are . However, NASA reports that it did .

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Though they appear on an extremely hot surface, , according to LiveScience.com. They average around 5,000 to 7,500 degrees Fahrenheit while the areas surrounding them average around 9,900 °F.

LiveScience.com also reports that they’re caused by magnetic storms in the suns’s atmosphere, which . They usually appear in pairs and are only temporary.

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