0
Want this question answered?
Be notified when an answer is posted
Add your answer:
Earn +20 pts
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
What method do astronomers use to determine the distance to a relatively close star like Sirius?
For nearby stars, the parallax method is used.
What can astronomers learn about the stars motion based on wavelength shifts?
They can determine how fast the star is moving toward or away from us. The chemical spectral signature is used to determine the Doppler shift of the visible light reaching us. This is then used to calculate how fast we and the star in question are moving toward or away from each other.
What does the Doppler affect tell astronomers about a star?
The star attracts the planet; the planet attracts the star. As a result of the latter, the star changes position. If this change is such that the star moves away from us during one part of the planet's orbit, and towards us at another (or more generally, the star's speed towards us, or away from us, changes slightly), then this can be detected as a Doppler shift.
How do you determine the composition of a new star that is located outside the solar system and inside our galaxy?
By looking at the spectrum of its light and finding out which absorbtion lines can be seen. The lines correspond to specific elements in the outer parts 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.
What would be a common task for astronomers?
using a telescope to determine the coordinates of a star
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
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 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
One way in which scientists can determine the surface temperature of a star is by its A. brightness. B. composition. C. color. D. mass.?
its color does determine the temperature of star.
What acts as fingerprints to help scientists determine a star's composition?
Spectral lines - nn
The red shift of visible light waves that is observed by astronomers on earth is used to determine the?
The speed of relative retreat of the star.
Instrument used by astronomers to spread light?
A spectroscope is used to diffuse the light from a star into its spectrum, so that astronomers can analyze the elements that make up the star. The same sort of instrument can be used to analyze the elemental composition of ANYTHING; for terrestrial uses, the instrument is called a spectroGRAPH.
