A visually beautiful solar flare erupted from the east limb of the sun yesterday.
Extreme UV radiation briefly ionized the upper layers of Earth’s atmosphere; otherwise, our planet was not in the line of fire.
The responsible sunspot will turn toward Earth in the days ahead, boosting chances for geoeffective solar activity as the week unfolds.
Solar-terrestrial indices for 25th August are – Solar flux 141 and estimated planetary A-index 4. The estimated planetary K-index at 0300 UTC on the 25th August was 0.