It is expected that sunspot maximum will occur no earlier than the year 2023 and no later than 2026 with a minimum peak sunspot number of 95 and a maximum of 130.
Solar cycle 25 is the current, and 25th solar cycle since 1755, when extensive recording of solar sunspot activity began.
Thus, it appears that the ISSN is still decreasing, and the next minimum is expected in the near future to occur. The forecast consensus: a peak in July, 2025 (+/- 8 months), with a smoothed sunspot number (SSN) of 115. Solar cycle: Solar cycles 23-24 (June 1, 2020) Historical solar and geomagnetic data charts 1954-2006 (April 5, 2007) Cycle 24-25 progress (June 1, 2020) Noon SDO sunspot count 1K image / 4K (*) Solar cycles 1-24 (June 1, 2020) POES auroral activity level October 2009 - December 2012] “We expect Solar Cycle 25 will be very similar to Cycle 24: another fairly weak cycle, preceded by a long, deep minimum,” said panel co-chair Lisa Upton, Ph.D., solar physicist with Space Systems Research Corp. Solar Cycle 24 activity has peaked and it is on its way to a minimum. The Sun’s activity rises and falls in an 11-year cycle. Because normal Cycle life is nominally 11 years, start of Cycle 25 should be in 2019, The Sunspot number (Wolf number 30 … Historical solar cycles. NASA’s forecast for the next solar cycle (25) reveals it will be the weakest of the last 200 years. predicting the sun's "weather" is hazardous to scientist's reputations - which is why the recently concluded solar cycle 25 prediction panel was done in secret with no media coverage here is a blow up (of the chart above) of what the top government scientists are saying solar cycle 25 will look like according to their…
Of course the exact date of the minimum and the start of Solar Cycle 25 is not known. This is also supported by independent work in 2015 published in the journal Nature. Currently, we have Solar Cycle predictions for Solar Cycles 24 and 25 (cycle amplitude and F10.7 flux). The red curve represents the simulated (starting from the beginning of solar cycle 17) and predicted (cycle 25) solar activity. These charts on this page resemble the progress of the solar cycle. This is well below the average number of sunspots, which typically ranges from 140 to 220 sunspots per solar cycle.”
Sunspot groups have a magnetic field with a north and a south pole, and, in each 11-year rise and fall, the same polarity leads in a given hemisphere, while the opposite polarity leads in the other. 2 and 3 in Usoskin & Mursula 2003). Solar cycle, period of about 11 years in which fluctuations in the number and size of sunspots and solar prominences are repeated. The forecast for the next solar cycle says it will be the weakest of the last 200 years. You can zoom in on this plot by selecting a time period that you wish to view. Solar Cycle progression. In both plots, the black line represents the monthly averaged data and the purple line represents a 13-month weighted, smoothed version of the monthly averaged data.
Therefore the field strength is likely to be 40 at the 24/25 solar minimum.
Then the cycle begins again. The NOAA/NASA co-chaired international panel to forecast Solar Cycle 25 released a preliminary forecast for Solar Cycle 25 on April 5, 2019. The first sunspot of cycle 25 has already appeared on the solar disc 1 and currently we are observing an overlap period when two neighbouring solar cycles progress simultaneously (see fig. We also show our predictions for the evolution of the Sun's polar magnetic fields for the endof Solar Cycle 24, which were used to predict the amplitude of Cycle 25.
Image via CESSI .
(Emphasis added) The maximum of this next cycle – measured in terms of sunspot number, a standard measure of solar activity level – could be 30 to 50% lower than the most recent one.
The observed and predicted Solar Cycle solar cycle is depicted in Sunspot Number in the top graph and observed and predicted F10.7cm Radio Flux in the bottom graph. This page features our predictions and forecasts for the Sun.
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