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A solar flare is a relatively intense, localized emission of electromagnetic radiation in the Sun's atmosphere. Flares occur in active regions and are often, but not always, accompanied by coronal mass ejections, solar particle events, and other eruptive solar phenomena. The occurrence of solar flares varies with the 11-year solar cycle.
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 ...
An example is the Meeus smoothing formula, [7] with related solar cycles characteristics available in this STCE news item. [ 8 ] The start of solar cycle 25 was declared by SIDC on September 15, 2020 as being in December 2019. [ 9 ]
A powerful solar flare has been hurled out of the Sun, and could cause disruption on Earth.. The flare comes amid increasing solar activity that has brought a run of intense space weather in ...
Solar flares emit radiation commonly in the form of ultraviolet light and X-rays that can hurtle toward Earth at the speed of light. Some of these flares can be accompanied by coronal mass ...
On 22 February, region 3590 produced a solar flare measuring X6.3. [58] In May, the strongest solar storm in 20 years produced aurorae at far lower latitudes than usual. A few days later, on 14 May, region 3664 produced the strongest solar flare up to that point of the solar cycle, measuring X8.7. [59] [60]
NASA’s Solar Dynamics Observatory captured this image of a solar flare on Oct. 1, 2024. NASA had a busy start to October, as the agency announced that the sun emitted several major solar flares ...
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.