The Spectra.
spectrums i think...:)
spectrums i think...:)
spectra (shows the composition)
Astronomers study spectra to learn about the properties of starts. Spectra (plural of spectrum) is defined as an array of entities, as light waves or particles, ordered in accordance with the magnitudes of a common physical property, as wavelength or mass, and the band or series of colors, together with invisible extensions, produced by dispersion of radiant energy, as by a prism.
Astronomers study the sun, moon, and stars. They observe and analyze celestial objects in order to learn more about their properties, behavior, and evolution. Astronomy is a branch of science that focuses on the study of objects and phenomena in outer space.
Astronomers study stars, moons, and planets. They observe, analyze, and interpret data gathered from telescopes and other instruments to learn more about the universe.
this would be the emission and absorption lines in the light spectrum. certain elements absorb or emit wave lengths of light that is unique to that element. by studying the "rainbow" of the star astronomers can determine its properties and elements by looking at which wave lengths of light are absorbed or emitted.
Scientists study stellar spectra to learn about their properties such as temperature, chemical composition and relative chemical abundances, radial velocity, rotational speed etc.
the astronomers use Absolute magnitude
Astronomers
Astronomy
Astronomers (and their ilk) study stars and planets.