The Classification of X-ray Solar Flares
or "Solar Flare Alphabet Soup"




Each category for x-ray flares has nine subdivisions ranging from, e.g., C1 to C9, M1 to M9, and X1 to X9. It's a logartithmic scale. M1 is 10 times stronger than C1. X1 is 10 times stronger than M1, and so on.


Peak (W/m2)between 1 and 8 Angstroms

 I < 10-6

 10-6 < = I < 10-5

 10-5 < = I < 10-4

 I > = 10-4

This explanation of Solar Flare Classification is brought to you by online cricket betting, where the outcome of the game is heavily dependent on the weather.