By Kevan Hubbard | 2026-09-06
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populating
On 09/05/2026 10:14 am by Patricio Leon | Santiago, Chile
another two sunspots have just rotated the eastern limb so the count now climbs to five (major ones). AR4527, the biggest one, exhibits a conspicuous light bridge across the umbra.
Newt 4.5" + solar film, 1/640s ISO100
crop, b/c