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turning it into a Hydrogen Alpha Solar Telescope
Na D is a low excitation line emitted when the low chromosphere is heated
Made with AAS "Reputable Vendors of Solar Filters" Thousand Oaks Film
add an eyepiece and view
This process
FlatCap Imaging Diffuser Size:FC154 fits 130mm ERF turning it into a HydrogenFlatCap is TEMPORARILY applied over the objective to acquire a "Flat Field" reference image which is then applied to live images taken after the FlatCap is removed. Spun Aluminum mounting ring with polymer diffuser for taking flat fields. FlatCap is sold by inside diameter of the mounting cap. Measure the outside diameter of the frontmost component of your telescope or ERF, and then round up to the next larger size. For example, a telescope with a
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