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Solar cycle 25 is the current solar cycle, the 25th since 1755, when extensive recording of solar sunspot activity began. It began in December 2019 with a minimum smoothed sunspot number of 1.8. [ 2 ]
The Solar cycle, also known as the solar magnetic activity cycle, sunspot cycle, or Schwabe cycle, is a periodic 11-year change in the Sun's activity measured in terms of variations in the number of observed sunspots on the Sun's surface.
Solar cycles are nearly periodic 11-year changes in the Sun's activity that are based on the number of sunspots present on the Sun's surface. The first solar cycle conventionally is said to have started in 1755.
The current solar maximum likely began in early 2023, as the sun began to display more and more sunspots, which are low-temperature regions on the sun's surface created by concentrated magnetic ...
Both this year’s storms are part of the same broad pattern of increasing sunspot activity. ... and the current solar cycle has reached the highest number of sunspots since 2001, ...
The Solar Cycle 25 Prediction Panel, an international scientific group sponsored by NASA and NOAA that forecasts sunspot activity, forecast in 2019 that the coming year would be below-average ...
A prediction for Sunspot Cycle 24 (2008-2020) gives a smoothed sunspot number maximum of about 66 in the Summer of 2013. Current observations make this the smallest sunspot cycle since records began in the 1750s. [1] Solar maximum is the regular period of greatest solar activity during the Sun's 11-year solar cycle.
NASA said the sun is expected to reach the peak of Solar Cycle 25 in 2025. By then sunspots located in regions of intense magnetic activity should increase, according to the NOAA.