1 angstrom h-alpha blocking filter -Apollo Lasky-
Taken by Apollo Lasky on June 11, 2020 @
naperville, il
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I had a new blocking filter developed for hydrogen alpha telscopes. Today was the first light and it was an instant success. The double limb layer has been eliminated. Cheers to everyone who still had faith in me. Images from a coronado pst etalon.
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