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Old 30-10-2021, 04:01 PM
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Merlin66 (Ken)
Spectroscopy Wizard

Merlin66 is offline
Join Date: Oct 2005
Location: St Leonards, Vic
Posts: 8,650
That's the strength of the Spectroheliograph.
Multi wavelength solar imaging without the embarrassing cost of multiple extreme-narrowband filters!!!
For the cost of one filter, you get the lot in one box!
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