scientists can tell the stars composition and temperature from its spectrum.
Hope tht helps :]
spectroscope
They found stars in the sky that moved in regular patterns, and that kept coming back
An Astronomer is a scientist who studies the stars and planets.
The differences in spectrum are mainly due to: * Differences in temperature between the stars * Differences in chemical composition * Differences in relative movement (redshift / blueshift, due to the Doppler effect)
Most stars exhibit a continuous spectrum, which contains all wavelengths of light in a continuous distribution. This is often referred to as a blackbody spectrum due to its smooth curve.
Larry arriaga
If you are meaning the light spectrum, Physicists study all forms of light and waves and what they do.
Isaac Newton is credited with being the first scientist to discover that white light is actually composed of a spectrum of colors. He achieved this by passing white light through a prism, which separated it into its component colors, creating a rainbow spectrum.
He Was A Scientist Anyway
Studying the spectrum of a star can provide information about its temperature, composition, and motion. By analyzing the absorption and emission lines in a star's spectrum, astronomers can determine its chemical composition, surface temperature, and whether it is moving closer or farther away from Earth. This information helps astronomers understand the physical properties of stars and their roles in the evolution of galaxies.
The Colour Spectrum was first defined by Isaac Newton (1666) during his experiments with a prism.
An Astronomer.