Jeanway 0 Posted October 31, 2004 The Sun and stars are balls of ionized gas. The hotter the star, the more energetic will be the motions of the free electrons and protons, and the greater the energy of the photons they emit. The greater the photon energy, the higher the photon frequency, and the bluer the photon will appear. The lower the thermal energy of the gas, the less energetic the charged particles, and the redder (lower frequency) the photons will appear. Share this post Link to post Share on other sites
WEAREBORG4102 0 Posted November 6, 2004 you are correct. The hotter stars are blue. Our sun is relatively cool. Share this post Link to post Share on other sites