Music credit: Foraging at Dusk by Benjamin James Parsons
On July 5, 2017, NASA’s Solar Dynamics Observatory watched AR26665, an active region — an area of intense and complex magnetic fields — rotate into view on the sun. The satellite continued to track the region as it grew and eventually rotated across the sun and out of view on July 17.
GCMD keywords can be found on the Internet with the following citation:
Olsen, L.M., G. Major, K. Shein, J. Scialdone, S. Ritz, T. Stevens, M. Morahan, A. Aleman, R. Vogel, S. Leicester, H. Weir, M. Meaux, S. Grebas, C.Solomon, M. Holland, T. Northcutt, R. A. Restrepo, R. Bilodeau, 2013. NASA/Global Change Master Directory (GCMD) Earth Science Keywords. Version 188.8.131.52.0