Why is H-alpha so popular? Are there low cost ways to look at fine detail of events and processes on the sun?
https://www.facebook.com/groups/1278689162297491 Why is H-alpha so popular? Are there low cost ways to look at fine detail of events and processes on the sun? Multiple frequencies? Energies, densities, temperatures, velocities, concentrations, entropy measures, etc? I am finding more and more groups sharing data about the sun on the Internet, and some of it is accessible in
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