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...ion-line star, which is in the midst of transitioning to a nitrogen-rich [[Wolf–Rayet star|Wolf-Rayet star]], as well as being a candidate [[Luminous blue variab ...lve into Wolf-Rayet stars, and understanding the pre-SN evolution of these stars is critical to the interpretation and modeling of the supernovae they produ ...

| type = [[Wolf–Rayet star]] | names= [[Wolf–Rayet star|WR]] 29a, [[Variable star designation|V574]] Carinae, [[Guid ...

...st massive stars|most massive]] and [[list of most luminous stars|luminous stars known]]. ...was observed in a 2001 survey called the ''Study of Long Period Variables stars near the Galactic Centre''. The survey named the star GMC2001 10-1, GM ...

...[helium]] found, usually in absorption, in the spectra of hot stars like [[Wolf–Rayet star]]s. The name comes from [[Edward Charles Pickering]]<ref name = Robott ...er, they are seen in emission in the spectra of Wolf-Rayet stars, as these stars have little or no hydrogen. ...

...0 |title=The Proton-Deuteron Transformation As a Source of Energy in Dense Stars |journal=Physical Review|publisher=American Physical Society |volume=57 |is ...y |first2=Saul A. |year=1983 |title=Black Holes, White Dwarfs, and Neutron Stars: The physics of compact objects |publisher=A Wiley-Interscience Publication ...

...chawinski]]. "Understanding the Green Peas may tell us something about how stars were formed in the early Universe and how galaxies evolve".<ref name=gzyale ...es having formed most of their stellar mass several billion years ago. Old stars have been spectroscopically confirmed in one of the three galaxies in the s ...

...f the energy available to do work, must rise over time.<ref name="Nave" /> Stars will eventually exhaust their supply of [[hydrogen]] fuel via fusion and bu ...Cephei, aka Errai, a future North Star |url=https://earthsky.org/brightest-stars/gamma-cephei-errai-future-north-star/ |access-date=25 December 2021 |websit ...

...]] and [[brown dwarfs]] which are the least voluminous known (the smallest stars by volume). ===Notable small stars=== ...