2026-01-20 16:41 UTC
By pure chance, Stefan observed the Sun last Friday with a custom-made telescope. The active region seen here close to the edge of the Sun's disc have now rotated more towards us. A so-called coronal mass ejection coming from this region has caused the ongoing geomagnetic storm.
📹 S. Ströbele/ESO
Replies (1)
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@esoastronomy@mastodon.social 2026-01-20 16:41
If you’re interested in Stefan’s custom setup, you can find all the details (in German) here: https://atmn.eu/2025/11/acuter-elite-phoenix-umbau/