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Never, ever look directly at the sun, because it can hurt your eyes and damage your vision forever!
A calcium filter enables astronomers to study the Sun’s chromosome and photosphere, highlighting features such as calcium ion emission lines, facilitating observations of solar flares, active regions, and magnetic structures.
A hydrogen-alpha filter allows astronomers to observe the Sun’s chromosphere, revealing solar prominences, filaments, and other features primarily emitting light at the hydrogen-alpha wavelength of 656.28 nanometers.
White filters for viewing the sun serve as essential protective barriers, allowing safe observation of solar phenomena by attenuating harmful wavelengths while preserving visual clarity.