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handrous
on Aug 31, 2021
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Notes Regarding Dupuis’ 1910 Elements of Astronomy...
What ended up being the cause of that mysterious spectral line?
ericbarrett
on Aug 31, 2021
[–]
Double-ionized oxygen:
https://en.wikipedia.org/wiki/Nebulium
handrous
on Aug 31, 2021
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[–]
Ha! Didn't occur to me to search the archaic name on Wikipedia, but in hindsight, of course that works.
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