How large are Bright Giants typically in relation to the Sun's radius?
Answer
Between about 10 to 100 times the size of the Sun
Physical size comparisons reveal that while bright giants have substantially expanded from their main-sequence state, they do not reach the extreme radii of true supergiants. A star of similar initial mass to the Sun, once it becomes a bright giant, will typically swell to a radius that is between 10 and 100 times the radius of the Sun. This size range places them significantly larger than their main-sequence counterparts (like the Sun at 1 solar radius) but conspicuously smaller than supergiants, which can easily exceed 100 solar radii and reach many hundreds.
Related Questions
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