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Solar cycle 23 lasted 11.6 years, beginning in May 1996 and ending in January 2008. The maximum smoothed sunspot number (monthly number of sunspots averaged over a twelve-month period) observed during the solar cycle was 120.8 (March 2000), and the minimum was 1.7. [29] A total of 805 days had no sunspots during this cycle. [30] [31] [32]
3-11 10-6 Solar cycle 20: 1964 – Oct 14.3 1968 – Nov 157 86 4-1 11-5 Solar cycle 21: 1976 – Mar 17.8 1979 – Dec 233 111 3-9 10-6 Solar cycle 22: 1986 – Sep 13.5 1989 – Nov 213 106 3-2 9-11 Solar cycle 23: 1996 – Aug 11.2 2001 – Nov 180 82 5-3 12-4 Solar cycle 24: 2008 – Dec 2.2 2014 – Apr 116 49 5-4 11-0 Solar cycle 25: 2019 ...
NASA says the sun is in the highly active "maximum phase" of its 11-year solar cycle. That means there will probably be big solar storms bringing beautiful aurora in the next year or so.
Solar maximum is the regular period of greatest solar activity during the Sun's 11-year solar cycle. During solar maximum, large numbers of sunspots appear, and the solar irradiance output grows by about 0.07%. [2] On average, the solar cycle takes about 11 years to go from one solar maximum to the next, with duration observed varying from 9 to ...
Scientists said the sun is now in its solar maximum, or the peak of its 11-year solar cycle.
Solar flares decrease as the sun nears solar minimum. So, throughout the 11-year solar cycle, flares may occur several times a day or only a few times per month, according to NASA.
An 11-year sunspot cycle is half of a 22-year Babcock–Leighton dynamo cycle, which corresponds to an oscillatory exchange of energy between toroidal and poloidal solar magnetic fields. At solar-cycle maximum, the external poloidal dipolar magnetic field is near its dynamo-cycle minimum strength; but an internal toroidal quadrupolar field ...
Northern lights activity to increase during solar maximum. Electromagnetic activity is increasing as the sun continues to reach the height of its 11-year solar cycle, which NASA said is expected ...