Where are Bright Giants positioned on the H-R diagram relative to main-sequence stars?
Answer
Above the main sequence, indicating greater luminosity for a given temperature
The Hertzsprung-Russell (H-R) diagram is the tool used to categorize stars based on temperature (spectral type) and luminosity. Bright giants occupy a position distinctly above the main sequence band. This placement signifies that for any given surface temperature, a bright giant radiates significantly more energy (is more luminous) than a star currently fusing hydrogen in its core, which resides on the main sequence (Class V). They occupy a middle ground, bridging the sequence stars and the much brighter supergiants (Class I).
Related Questions
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