An absorption spectrum is a graph showing the absorption of light by a substance, typically a gas, at different wavelengths. It is characterized by dark lines or bands, known as absorption lines, where light has been absorbed by the substance, and is crucial for identifying the composition of stars and other celestial bodies.

Absorption Spectrum

absorption spectrum

graph showing the absorption of light

absorption of light by a substance

different wavelengths

dark lines

Absorption lines are dark lines or bands that appear in the spectrum of a light source due to the absorption of specific wavelengths by a medium, usually gas, through which the light passes. They provide crucial information about the composition, temperature, density, and motion of the intervening medium, making them vital tools in astrophysics and spectroscopy.

absorption lines

light has been absorbed

identifying the composition of stars

Celestial bodies are natural physical entities found in the universe, including stars, planets, moons, asteroids, comets, and meteoroids. They are studied to understand the formation, structure, and evolution of the universe, as well as the potential for life beyond Earth.

celestial bodies

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