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September Sunspots

PostPosted: Sun Sep 10, 2017 5:03 pm
by DIYastronomer
At the September main meeting we were asked to make observations of the Sun as we had two very large sunspots at the time.

On Thursday 7th September at 10.15UT and 14.35UT two X rated flares hit the top of the Earths atmosphere. These were recorded by the SID system in the society backroom. See image attached.