Visualizations by
Tom Bridgman
Released on February 11, 2015
The largest sunspot seen so far in this solar cycle produced a number of flares, even a few X-class flares, but only one rather small coronal mass ejection (CME). Here is a view of the sunspot group during the two weeks it took to pass across the solar disk
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 8.0.0.0.0