Bidelman was a pioneer in recognizing sub-groups of which stars?
Peculiar stars
Binary stars
Dwarf stars
Giant stars
Answer
**Answer: Peculiar stars**. Peculiar stars are a group of stars that exhibit unusual spectral features, such as strong magnetic fields, overabundances of certain elements, and variable light curves. These stars are thought to be in a transitional phase of their evolution and are often used to study the processes that shape stellar structure and behavior.
The Stellar Legacy of William P. Bidelman: An Astronomical Quiz Quest
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