National Solar Observatory
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The NSO runs state-of-the-art solar telescopes and solar observation programs. Projects include the NSF Inouye Solar Telescope, Global Oscillation Network Group (GONG), and Synoptic Optical Long-term Investigations of the Sun (SOLIS).
Solar Activity Report: June 8–14, 2026
Solar activity during the reporting period remained at low levels, with only C‑class flares observed. The strongest event was an impulsive C9.0 flare from active region 14465 on June 11. Additional C‑class activity from the same region included C7.2 and C4.5 flares on June 8, a C4.5 flare on June 9, a long‑duration C6.7 flare on June 11, and a C5.2 flare on June 12. Several low‑intensity C‑class flares were also produced by multiple active regions. As a result, active region 14465 was the most flare‑productive region of the period. A few CMEs were observed, but none contained a significant Earth‑directed component.
The latest helioseismic mapping of the Sun’s far hemisphere indicates that two strong active regions in the southern hemisphere may rotate into Earth view around June 20-21, provided they maintain or increase their strength over the next few days. At present, both regions exhibit helioseismic signatures consistent with strong far‑side activity.
Data by NSF-NOAA GONG, operated by NSF NSO.
Additional Credits: Jain/Oien/NSF/GONG/NSO/AURA, with contributions by NOAA.
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