Star Size Comparison by Spectral Type - O to M Class Radii Visualization #3730231 (License: Personal Use)

This visualization displays seven stellar types-O, B, A, F, G, K, and M-arranged left to right by decreasing radius, with each sphere’s size proportional to its actual radius in solar radii (R☉). The largest O-type star is over 40 times the volume of the smallest M-type dwarf, illustrating dramatic differences in stellar evolution and mass. Reflections on the surface enhance depth and realism.

Used in astronomy education,科普 articles, or astrophysics websites to illustrate stellar classification and size scaling; matches user intent for visual learning about star properties and HR diagram context.