A. Hertzsprung-Russell diagram - A plot of the surface temperature (color) of stars vs. their luminosity (brightness), B. Luminosity - The intensity, or brightness, of light from a celestial body, C. Star - A celestial body consisting of a mass of gas held together by its own gravity ad energy is generated by nuclear reactions, D. Temperature - The average kinetic energy of all the particles in a material, E. Planetary nebula - A cloud of interstellar gas and dust created by a dying, average-sized star,

Leaderboard

Visual style

Mga Option

I-switch ang template

I-restore ang gi-autosave: ?