Birdwatch Note Rating
2024-03-09 20:17:21 UTC - HELPFUL
Rated by Participant: 869A5E4C83130A3318B62DB27A916E7CA3D145412E8C153C3F7909AFA52C6C7C
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Original Note:
You need a hydrogen-alpha filter(H-alpha). H-alpha filters pass a narrow wavelength of light centered on the H-alpha emission line of hydrogen (656.28 nm), This wavelength is where solar flares, filaments, prominences, and other dynamic features are more visible. https://www.astronomy.com/science/how-to-choose-a-hydrogen-alpha-filter/
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