For broader coverage of this topic, see Solar cycle.
Three recent solar cycles
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 date of the minimum is described by a smoothed average over 12 months of sunspot activity, so identifying the date of the solar minimum usually can only happen 6 months after the minimum takes place.
Solar minimum is contrasted with the solar maximum, when hundreds of sunspots may occur.
Solarminimum is the regular period of least solar activity in the Sun's 11-year solar cycle. During solarminimum, sunspot and solar flare activity diminishes...
temperatures. The reduced solar activity may have contributed to the climatic cooling, although the cooling began before the solarminimum and its primary cause...
of minimum activity to a period of a maximum activity back to a period of minimum activity. The magnetic field of the Sun flips during each solar cycle...
7310 BC, 7520 BC, 8220 BC, 9170 BC. Solar wind Solar variation Solarminimum List of solar cycles – table of solar cycles NASA C. D. Camp & K. K. Tung...
The Dalton Minimum was a period of low sunspot count, representing low solar activity, named after the English meteorologist John Dalton, lasting from...
as being 1.361 kilowatts per square meter (kW/m2) at solarminimum (the time in the 11-year solar cycle when the number of sunspots is minimal) and approximately...
solar minimum, few sunspots are visible, and occasionally none can be seen at all. Those that do appear are at high solar latitudes. As the solar cycle...
composites are evident, but the most significant is the solarminimum-to-minimum trends during solar cycles 21-23. ACRIM found an increase of +0.037%/decade...
Modern Gleissberg Minimum. The Solar Cycle 25 Prediction Panel predicted in December 2019 that solar cycle 25 will be similar to solar cycle 24, with the...
cycle is known as solar maximum, and the point of lowest activity as solarminimum. This period is also observed in most other solar activity and is linked...
field. At a typical solarminimum, few or no sunspots are visible. Those that do appear are at high solar latitudes. As the solar cycle progresses towards...
that emission of the slow solar wind occurred at latitudes up to 30–35° during the solarminimum (the period of lowest solar activity), then expanded toward...
(astronomy) Sunspot, where most solar flares and coronal mass ejections originate Wolf number, counts sunspots Maunder Minimum, the period roughly spanning...
Muscheler (2022). "Cosmogenic radionuclides reveal an extreme solar particle storm near a solarminimum 9125 years BP". Nat. Commun. 13 (214): 214. Bibcode:2022NatCo...
surface. The solar wind elongates these loops to pointed tips which can extend a solar radius or more into the corona. During solarminimum, helmet streamers...
corroborated by tree rings. It unexpectedly appears to have occurred near a Solarminimum and was as strong as, or probably even slightly stronger than the famous...
encounter the Earth, they can cause major displays of aurorae. Near solarminimum, when activity such as coronal mass ejections is less frequent, such...
recent solar cycles, down to a level which had not been seen since cycles 12 to 15 (1878-1923). Prior to the minimum between the end of Solar Cycle 23...
is at a minimum and is equal to latitude minus solar declination angle. This is the basis by which ancient mariners navigated the oceans. Solar zenith...
ejections, solar particle events, and other eruptive solar phenomena. The occurrence of solar flares varies with the 11-year solar cycle. Solar flares are...
from the center to about 0.2 of solar radius (139,000 km; 86,000 mi). It is the hottest part of the Sun and of the Solar System. It has a density of 150...
In the United States, the minimum wage is set by U.S. labor law and a range of state and local laws. The first federal minimum wage was instituted in the...
the Maunder minimum. It was proposed that one cycle might have been lost in the late 18th century, but this remains not fully confirmed. Solar cycles can...
In particular, the effect of the 11-year solar cycle, which sees a distinct maximum and minimum of solar wind activity, is thought to be significant...
In solar physics, a prominence, sometimes referred to as a filament, is a large plasma and magnetic field structure extending outward from the Sun's surface...
observed during the solar cycle was 232.9, in December 1979, and the starting minimum was 17.8. During the minimum transit from solar cycle 21 to 22, there...
released five solo albums: Mayfly (2005), The Returning Sun (2007), SolarMinimum (2009), The Horse's Mouth (2013) and Lockdown (2020). His debut extended...
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