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spectra of the sun and stars
willb
Splitting light, Pink Floyd, 19th century astronomy, spectra, and more
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short for astronomy william o balmer ;~)
willb
Splitting light, Pink Floyd, 19th century astronomy, spectra, and more
Lorem ipsum dolor sit amet, consec tetur adipiscing elit. Maecenas odio lacus, dignissim sollicitudin finibus commodo, rhoncus et ante.