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spot-class the McIntosh sunspot group class of the active region mag-class the Mount Wilson magnetic classification of the active region ar-sxr-flares a list of the largest soft-X-ray flares produced by the active region ar-ha-flares a list of the largest H-alpha flares produced by the active region
M-class flares are a tenth the size of X-class flares with the same numeric suffix. [23] An X2 is four times more powerful than an M5 flare. [24] X-class flares with a peak flux that exceeds 10 −3 W/m 2 may be noted with a numerical suffix equal to or greater than 10. This system was originally devised in 1970 and included only the letters C ...
May 2024 solar storms: X1.2(X1.3)-class flares [93] and X4.5-class flare. [94] The flares with a magnitude of 6–7 occurred between 30 April and 4 May 2024. On 5 May the strength of the solar storm reached 5 points, which is considered strong according to the K-index. The rapidly growing sunspot AR3663 became the most active spot of the 25th ...
Solar flares strongly influence space weather near the Earth. They can produce streams of highly energetic particles in the solar wind, known as a solar proton event. These particles can impact the Earth's magnetosphere in the form of a geomagnetic storm and present radiation hazards to spacecraft and astronauts. A solar flare
Most types of solar radio bursts are produced by the plasma emission mechanism operating in different contexts, although some are caused by (gyro)synchrotron and/or electron-cyclotron maser emission. Solar radio bursts of Types I, II, and III as seen in dynamic spectrum observations from the Learmonth Solar radiospectrograph.
Our life-giving death star is experiencing its "solar maximum," which sounds like the name of a Christian rock band and is defined as the peak activity period within the sun's 11-year solar cycle.
Solar storms include: Solar flare, a large explosion in the Sun's atmosphere caused by tangling, crossing or reorganizing of magnetic field lines; Coronal mass ejection (CME), a massive burst of plasma from the Sun, sometimes associated with solar flares; Geomagnetic storm, the interaction of the Sun's outburst with Earth's magnetic field
In solar physics and observation, an active region is a temporary feature in the Sun's atmosphere characterized by a strong and complex magnetic field.They are often associated with sunspots and are commonly the source of violent eruptions such as coronal mass ejections and solar flares. [1]