Tuesday, June 23, 2026

Solar Activity Report: June 15 - 21, 2026

 Solar activity during the past week generally remained at low levels, except for the final two days when several Mclass flares were produced. Only lowintensity Cclass flares were observed through June19, after which activity increased with the arrival of active region14473. The strongest event of the week was an isolated M6.8 flare on June21 from AR14473. This region also generated two additional moderate flares, an M1.0 on June20 and an M2.6 on June21. Active region14472 produced another moderate flare, an M1.3, on June20. June16 was the least active day of the period, with Xray flux remaining mostly below the C level. Several coronal mass ejections were reported, though none had an Earthdirected component.

Helioseismic mapping of the farside indicates a moderatesized active region in the southern hemisphere that may rotate into Earth view around June24.

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Solar Activity Report: June 15 - 21, 2026

 Solar activity during the past week generally remained at low levels, except for the final two days when several M ‑ class flares were prod...