0
What are 3 things that we can learn about a star by observing it's spectrum?
Wiki User
∙ 9y ago
By observing far away stars in our galaxy through a spectroscope, we are able to see the spectrum that appears from the substances in these stars. Each element has a unique spectrum when light is shone through it, so we are able to determine what elements make up certain stars.
Wiki User
∙ 12y ago
Wiki User
∙ 12y agoThe star's spectrum can tell you the relative motion of the star either toward or away from the viewer (you can tell by means of the Doppler shift), the temperature of the star, and the chemical composition of the star.
Wiki User
∙ 10y agoThe composition of the star (elements that make up the star) can be determined by light split into its spectrum via spectroscopy.
Its distance from Earth can also be determined, relative to variable stars, supernovae, and other "standard candles".
Once can also determine how it is moving, what gravitational sources may be nearby, and what strong gravitational sources may lie between the star and the observer (all due to effects visible by its motion and relativistic gravitational lensing).
Wiki User
∙ 12y agothe temperature of a star
Add your answer:
Earn +20 pts
What part of a star is it that astronomers study in order to learn its characteristics of a star?
Primarily, it's spectrum (it's light seen through a spectrograph).
What information does a star's spectrum offer about the star?
Spectroscopy shows what elements are present in the star, it's chemical composition. The different elements give off different energy signatures through radiation, which relate to the wavelength and therefore colour.
Analysis of the of a star reveals the composition of the star?
That's done by analyzing the star's spectrum.
Can astronomers tell from the elements of a star what uts surface temperature is?
The temperature of a star is determined for it's colour spectrum. The hotter the star the more the spectrum is towards blue where as a cooler star has a spectrum closer to red.
The mass of a star can be determined by studying?
binary star systems
What does it mean when an astronomers observing starlight wa spectrograph notices shift at off lines to the red end of spectrum?
The star is moving away fro where it is. ~Justine... :))
What part of a star is it that astronomers study in order to learn its characteristics of a star?
Primarily, it's spectrum (it's light seen through a spectrograph).
What information can you get in observing the star?
love
What information does a star's spectrum offer about the star?
Spectroscopy shows what elements are present in the star, it's chemical composition. The different elements give off different energy signatures through radiation, which relate to the wavelength and therefore colour.
Analysis of the of a star reveals the composition of the star?
That's done by analyzing the star's spectrum.
Can astronomers tell from the elements of a star what uts surface temperature is?
The temperature of a star is determined for it's colour spectrum. The hotter the star the more the spectrum is towards blue where as a cooler star has a spectrum closer to red.
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.
Does the spectrum of light from a star have no gaps?
No, a spectrum of light with no gaps can not be achieved.
You are observing a star about 100 light years away how old is the most recent information you can get aboutthis star?
if you are observing a star 100 light years away, you are looking at it as it was 100 years ago.
How do scientists determine the element present in a star?
By the star's spectrum.
How does an astronomer estimate the temperature of a star by observing it?
By the color.
How do scientists determine the elements in a star since they cannot collect a sample from a star?
They analyze the star's spectrum. Each element produces characteristic lines in a spectrum.
