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As at Dec 6, 2024, solar cycle 25 is averaging 39% more spots per day than solar cycle 24 at the same point in the cycle (Dec 6, 2013). Year 1 of SC25 (Dec 2019 to Nov 2020) averaged 101% more spots per day than year 1 of SC24. Year 2 of SC25 (Dec 2020 to Nov 2021) averaged 7% more spots per day than year 2 of SC24.
Solar minimum is the regular period of least solar activity in the Sun's 11-year solar cycle. During solar minimum, sunspot and solar flare activity diminishes, and often does not occur for days at a time. On average, the solar cycle takes about 11 years to go from one solar minimum to the next, with duration observed varying from 9 to 14 years.
The Solar Cycle 25 Prediction Panel predicted in December 2019 [11] that solar cycle 25 will be similar to solar cycle 24, with the preceding solar cycle minimum in April 2020 (± 6 months), and the number of sunspots reaching a (smoothed) maximum of 115 in July 2025 (± 8 months).
Following the peak, solar activity slows down, according to NASA, growing less and less until the solar minimum. At that point, a new solar cycle begins as solar activity rebounds. What is the ...
The Homeric Minimum is a persistent and deep [1] grand solar minimum between about 800 and 600 BC. Cosmogenic beryllium-10 deposits in varves in a German lake show a sharp increase "2,759 ± 39 varve years before present", [2] [3] while carbon-14 is high starting around 830 BC. [4]
Though regulators reduced the size of that increase, Hoosiers are still on track to see higher power bills in 2024. 2. Kentucky — Solar Score: 18.97 out of 100.
Predictions of a future maximum's timing and strength are very difficult; predictions vary widely. There was a solar maximum in 2000. In 2006, NASA initially expected a solar maximum in 2010 or 2011, and thought that it could be the strongest since 1958. [4]
Mondays total eclipse of the sun will be the last such event in the continental US until 2045.