Which spectral classifications correspond to the shortest-lived main sequence stars?
Answer
O-type and B-type stars
The stars destined to experience the briefest main sequence existence are situated at the high end of the stellar mass spectrum, which corresponds directly to specific spectral classifications. These are identified as O-type and B-type main sequence stars. These celestial objects are characterized by their intense heat, high luminosity, and typically blue or blue-white coloration, signaling the extreme internal conditions necessary to sustain their immense mass against gravitational collapse, which inherently necessitates a rapid depletion of hydrogen fuel reserves.
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Which Type Of Star Has The Shortest Life Span? - Physics Frontier
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