The bizarre anomaly that is Przybylski’s Star in five parts
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Przybylski’s Star
https://sites.psu.edu/astrowright/przybylskis-star/
The bizarre anomaly that is Przybylski’s Star in five parts: What is Przybylski’s Star? Abundance Anomalies Hypotheses Caveats Origins
TL;DR it seems to have exotic short-lived radioactive elements in it, that have no business being in a star
I also greatly enjoy that Przybylski's Twitter handle is "@ShuhBillSki" to help people know how to say his name