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)
The chemical composition of the star.
Stars can range from blue to red depending on temperature and mass, with yellow stars in the middle and white stars on the back end of the spectrum.
Because the spectrum consist of another element
because all of the different lines of a star's elements appear together i its spectrum, making the pattern different everytime
scientists can tell the stars composition and temperature from its spectrum. Hope tht helps :]
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.
A spectrograph is a device that separates light from stars and other objects into its different wavelengths to produce a spectrum. This allows astronomers to study the composition, temperature, and other properties of the object emitting the light through analysis of the spectrum.
scientists can tell the stars composition and temperature from its spectrum. Hope tht helps :]
Its elemental composition.
Stars appear white in the night sky because they emit light across a broad spectrum of colors, with a balance of different wavelengths that our eyes perceive as white.
Orange stars have a K-type spectrum with a wide distribtion of brightness.
Different chemical elements emit (or absorb) certain specific frequencies of light. When the light from a star is split in to it's rainbow spectrum of light, certain parts of the spectrum will be black (in absorption spectra) or brighter (in emission spectra). By comparing these lines to the known emission and absorption spectra of elements, the composition of a stars atmosphere can be determined.