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By looking at the lines in a star's spectrum of light, astronomers can tell what kinds of elements the star is made of. This happens because when a beam of light hits an atom or molecule, that atom absorbs a characteristic wavelength (color) of visible light. Scientists have made a huge list of different elements and the different patterns of lines observed in theirj corresponding "spectra" (fancy word for light spectrums), and by using such lists can deduce precisely what each star is made of.
Wiki User
∙ 8y ago
Wiki User
∙ 8y agoThey can be used to indicate what elements exist on the star; what compounds (usually not many, because of the high temperature); the temperature of the star; whether the star is moving towards us and away from us (and at what speed) (Doppler effect), among other things.
Wiki User
∙ 12y agoThey indicate not only the temperature of the star but also the elements that make up that star.
Wiki User
∙ 6y agoThe colour of a star is an indication of its temperature. The lines which show in its spectrum are indicative of the elements present in the star.
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What are two properties that are used to characterize a star?
The colors and lines in the spectrum of a star indicate the elements that make up the star.
Why do black lines appear on a star's absorption spectrum?
The lines indicate which atoms are in the outer layers of stars. The location of the lines is always the same when they form.
What part of the star is responsible for the dark lines in its spectrum?
Atoms in the atmosphere of the star is responsible for the dark lines in its spectrum.
How do scientists use spectrographs?
They analyze the spectrum of a star's light and the black lines in the spectrum indicate different elements in the stars atmosphere. The same process can be used on planets and moons.
How does the color indicate the temperature of a star?
because since its very hot the hotter it gets it starts to melt the color on the star. For Example blue stars. there the hottest star.
What are two properties that are used to characterize a star?
The colors and lines in the spectrum of a star indicate the elements that make up the star.
Why do black lines appear on a star's absorption spectrum?
The lines indicate which atoms are in the outer layers of stars. The location of the lines is always the same when they form.
What part of the star is responsible for the dark lines in its spectrum?
Atoms in the atmosphere of the star is responsible for the dark lines in its spectrum.
How do scientists use spectrographs?
They analyze the spectrum of a star's light and the black lines in the spectrum indicate different elements in the stars atmosphere. The same process can be used on planets and moons.
How does the color indicate the temperature of a star?
because since its very hot the hotter it gets it starts to melt the color on the star. For Example blue stars. there the hottest star.
The composition of a star can be identified by?
the lines in its spectrum
What color of a star indicate about it?
The color of the star Indicates its Temperature.
What does the presence of molecular bands in the spectrum of a star indicate?
The star has a low surface temperature.
Why can elements in a star be separated?
Because the spectrum of the star's light can be seen to have dark lines all the way through, and each element has its own set of dark lines in the star's spectrum.
What is the continuous spectrum of a star?
A continous spectrum hasn't discrete gaps between lines.
What are the Dark lines that appear in a spectrum of light from a star called?
absorption lines! :)
How are absorption and emission lines produced in a stellar spectrum What information might absorption lines in the spectrum of a star reveal about a cloud of cool gas lying between us and the star?
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