Solar flare - Wikipedia
WEBAn X3.2-class solar flare observed in different wavelengths. Clockwise from top left: 304, 335, 131, and 193 Å. Solar flares are eruptions of electromagnetic radiation originating in the Sun's atmosphere. [1] They affect all layers of the solar atmosphere (photosphere, chromosphere, and corona). [2]
What are the different types, or classes, of flares? - Stanford …
WEBWhat are the different types, or classes, of flares? Scientists classify solar flares according to their X-ray brightness, in the wavelength range 1 to 8 Angstroms. Flares classes have names: A, B, C, M, and X, with A being the tiniest and X being the largest.
What are X flares? Can they harm us? - EarthSky
WEBJan 7, 2024 · The biggest X-class flares are by far the largest explosions in our solar system. NASA says: Made visible to us by sun-observing satellites, these solar flares are awesome to watch.
NASA SVS | X-Class: A Guide to Solar Flares
WEBAug 9, 2011 · Flares happen when the powerful magnetic fields in and around the sun reconnect. They're usually associated with active regions, often seen as sun spots, where the magnetic fields are strongest. Flares are classified according to their strength. The smallest ones are B-class, followed by C, M and X, the largest.
What is a Solar Flare? - Science@NASA
WEBAug 9, 2011 · Solar flares are giant explosions on the sun that send energy, light and high speed particles into space. These flares are often associated with solar magnetic storms known as coronal mass ejections (CMEs).
The Classification of X-ray Solar Flares - Space weather
WEBThere are 3 categories: X-class flares are big; they are major events that can trigger planet-wide radio blackouts and long-lasting radiation storms. M-class flares are medium-sized; they can cause brief radio blackouts that affect Earth's polar regions.
Solar flares: What are they and how do they affect Earth?
WEBJul 6, 2022 · Solar flares are large explosions from the surface of the sun that emit intense bursts of electromagnetic radiation. The intensity of the explosion determines what classification the flare...
NASA SVS | Largest Flare yet from Solar Cycle 25
WEBOn May 14, 2024, the Sun emitted a strong solar flare. This solar flare is the largest of Solar Cycle 25 and is classified as an X8.7 flare. X-class denotes the most intense flares, while the number provides more information about its strength.
Solar Flares (Radio Blackouts) - NOAA / NWS Space Weather …
WEBSolar flare intensities cover a large range and are classified in terms of peak emission in the 0.1 – 0.8 nm spectral band (soft x-rays) of the NOAA/GOES XRS. The X-ray flux levels start with the “A” level (nominally starting at 10 -8 W/m 2 ).
ESA - What are solar flares? - European Space Agency
WEBA-class flares are at least ten times less intense than B-class flares, with no noticeable consequences on Earth. To indicate the strength of a flare, the class letter is often followed by a number. The higher the number, the stronger the flare!