... I think this wonderful near UV spectra of the star does show very impressive the difference in possibilities to the amateur research 30 years ago.
It would be great, if you could show the variability of that lines depending on the pulsation phase. So far I know, this have never been done by amateurs.
Ernst
Mira in near UV---Outburst?
Information about outbursts of eruptive stars, Be activity, ...
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