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What do astronomers use to determine the chemical composition in star?
Wiki User
∙ 8y ago
The light that comes from the star. The light is spread out into its spectrum and the pattern of spectral lines allow the composition (and temperature) to be determined. The temp can also be found by looking at the black body curve for the star (also from spectrum), or, by looking at the color of the star (difference in intensity of the light through two different color filters typically B and V. The light that comes from the star. The light is spread out into its spectrum and the pattern of spectral lines allow the composition (and temperature) to be determined. The temp can also be found by looking at the black body curve for the star (also from spectrum), or, by looking at the color of the star (difference in intensity of the light through two different color filters typically B and V.
Wiki User
∙ 15y ago
Wiki User
∙ 7y agoEach element blocks out a unique set of wavelengths as light passes though it. By looking at which wavelengths are blocked scientists can tell what elements are present.
Wiki User
∙ 8y agoAstronomers use spectral data from stars.
Wiki User
∙ 8y agoSpectral analysis.
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The chemical composition of a star can best be determined by?
Analyzing its a light with spectroscopy
What information can astronomers obtain by studying the spectra from stars?
They can obtain information about what elements are in the star; about the star's temperature; about whether the star is moving towards us or away from us; and partial information about the star's rotation.
Who is one of the propounders of the binary star theories?
All serious astronomers realize that there are binary stars.
How do astronomers determine how far away a star is by observing it once and then a few months later?
They observe how much it shifts against the background of other background stars when viewed from either side of Earth annual orbit of the Sun. Knowing the diameter of this orbit they can then work out the distance by triangulation.
What are some of the star characteristics that can be identified by spectral analysis?
Spectroscopic surveys are based on the fact that the colors you see in everything are not in the object being observed, but is the result of the fact that the elements that make up the object, are reflecting that part of the spectrum of light that strikes it. Spectroscopic analysis will give researchers an idea of the basic makeup of the star.
What instrument do the astronomers use to determine the chemical composition of a star?
They use a spectrograph to pass light through a prism to break it the light waves into its constituent colors. Then by looking at what colors are missing they can determine both the temperature and composition of the star.
Spectrographs help astronomers determine a star's what?
The star's chemical composition; the star's rotation; pulsations of the star; planets or other invisible objects moving around the star; how quickly the star is moving towards us or away from us.
The spectral type of a star measure?
The spectral type of a star is what measures its chemical composition. The visible light that bounces off of it can be used to determine the composition.
How did astronomers in the 19th century gather information about the chemical composition of stellar objects?
There is one way for gathering information about chemical composition of stellar objects - spectral analysis! Astronomical spectroscopy began with Isaac Newton's initial observations of the light of the Sun, dispersed by a prism. He saw a rainbow of colour, and may have seen absorption lines. The absorption lines in stellar spectra can be used to determine the chemical composition of the star.
What would be a common task for astronomers?
using a telescope to determine the coordinates of a star
What makes a star's spectrum appear to be different from another stars?
The chemical composition of the star.
What instrument do the astronomers use to determine the chemical composition of the star?
MY ANSWER IS....SPECTROSCOPE....because stars can seen through spectroscope...:)) sorry kung ganito lang kasimple yung answer ko...im just a grade 6 pupil lang kasi.. nice to meet you all... -Dulce Dumapias...add me on facebook..ahaha:)) see you there..:))
How do astronomers determine if a star is moving towards or away from us?
They use a tool called a SPECTROSCOPE.
If Astronomers observe a typical star using a telescope and a spectrometer they will be able to determine what?
i have no idea but it uytr
How do scientist determine the composition of a star?
the colors and lines in the spectrum of a star indicates the elements that make up a star
How can astronomers determine whether a star is moving toward or a way from earth?
They can do so by examining the light from the star. Doppler shift can indicate this
What determines the way a massive star dies?
the star's mass, chemical composition, and size of it when it is born
