NASA SVS | X-Class: A Guide to Solar Flares
WEBAug 9, 2011 · Within each letter class, there is a finer scale from 1 to 9. C-class flares are too weak to noticeably affect Earth. M-class flares can cause brief radio blackouts at the poles and minor radiation storms that might endanger astronauts.
Solar flare - Wikipedia
WEBFlares occur in active regions, often around sunspots, where intense magnetic fields penetrate the photosphere to link the corona to the solar interior. Flares are powered by the sudden (timescales of minutes to tens of minutes) release of …
What are the different types, or classes, of flares? - Stanford …
WEBScientists 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. Each category has nine subdivisions ranging from, e.g., C1 to C9, M1 to M9, and X1 to X9.
What are X flares? Can they harm us? - EarthSky
WEBJan 7, 2024 · On New Year’s Eve 2023, the sun blasted a huge X flare, the biggest of solar cycle 25 so far. It came from sunspot region AR3536 and measured X5 on the solar flare intensity scale. The eruption...
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).
Solar Flare Data | NCEI - National Oceanic and Atmospheric …
WEBA solar flare is a short-lived sudden increase in the intensity of radiation emitted in the neighborhood of sunspots. Historically it was best monitored in the H-alpha wavelength and occurs in the chromosphere, though occasionally …
Solar flares: What are they and how do they affect Earth?
WEBJul 6, 2022 · Within each letter class, a finer scale from 1 to 9 gives the flare assessment greater precision with larger numbers representing more powerful flares within the class.
WEBThe total energy expended in a typical flare is about 1030 ergs; the magnetic field is extraordinarily high reaching values of 100 to 10,000 gauss. Optical flares in H-alpha are usually accompanied by radio and X-ray bursts and occasionally by …
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).
A historic solar flare’s huge intensity is revealed by new tools
WEBSep 8, 2023 · Solar flares are local outbursts of energy that cause a region of the Sun’s surface to emit unusually intense light. They can also be associated with the ejection of superheated matter into space.