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The science of stellar spectroscopy was pioneered by Joseph von Fraunhofer and Angelo Secchi. By evaluating the spectra of stars like Sirius for the Solar, they found variations inside the toughness and range of their absorption strains—the dark lines in stellar spectra brought on by the atmosphere's absorption of precise https://hectortrgcx.ampedpages.com/how-star-can-save-you-time-stress-and-money-64652014

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