Bidelman contributed to the identification of which peculiar stars?
Gold stars
Phosphorus stars
Ruby stars
Sapphire stars
Answer
Phosphorus stars, as their name suggests, are stars with an abundance of phosphorus in their spectra. They belong to a class of peculiar stars known as Ap/Bp stars, which exhibit peculiar chemical abundances and strong magnetic fields. Bidelman's work in the mid-20th century played a crucial role in identifying and categorizing these stars, contributing to our understanding of their unique characteristics and evolution.
The Stellar Legacy of William P. Bidelman: An Astronomical Quiz Quest
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