The video displays photos at a rate of two photos per day, totaling to over 2000 photos. NASA’s Solar Dynamics Observatory (SDO) began their documentation of our closest star way back in Spring 2010. They meant to capture the sun’s ascent towards its “solar maximum” which signifies the height of solar activity in a regular 11-year cycle.
The SDO’s camera captures one photograph every 12 seconds in 10 various wavelengths. The video itself displays more of only one specific wavelength, however there is a montage of the other wavelengths towards the end of the time-lapse.
Some photos were also released alongside the video, showing the sun at different wavelengths:
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