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The spectrum of a star is called a what?
... a photonic 'fingerprint'. The picture of a star's spectral lines is its photo-spectrograph.
What is the name for the change in a stars spectrum when it moves away from the earth?
The change in a star's spectrum when it moves away from the Earth is called redshift. This shift occurs because the wavelengths of light emitted by the star are stretched out as the star moves away, causing the light to appear more red.
What are dark lines in a stellar spectrum called?
The dark lines are absorption spectrum, the energy absorbed by Atoms in the atmosphere of the star. ================================ Fraunhofer's spectral lines.
Analysis of the of a star reveals the composition of the star?
That's done by analyzing the star's spectrum.
What is the for the change in star's spectrum when it moves away from earth?
There is a change in frequency; this effect is called "Doppler effect".
What is the name for the change in the star's spectrum when it moves away from earth?
That is called "redshift". The frequency of the radiation decreases.
Is it true that the spectrum of a star shows which elements make up a stars atmosphere?
Yes, the spectrum of a star reveals the elements present in its atmosphere through a process called spectroscopy. When light from a star passes through its atmosphere, specific wavelengths are absorbed by the elements, creating absorption lines in the spectrum. By analyzing these lines, astronomers can identify the chemical composition, temperature, density, and motion of the star's atmosphere.
What are the Dark lines that appear in a spectrum of light from a star called?
The dark lines that appear in a spectrum of light from a star are called absorption lines. These lines are caused by the absorption of specific wavelengths of light by elements in the outer atmosphere of the star. Absorption lines help astronomers identify the chemical composition of stars and other celestial objects.
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.
How do scientists determine the element present in a star?
By the star's spectrum.
Does the spectrum of light from a star have no gaps?
The spectrum of light from a star appears continuous, without gaps, because it is a result of the superposition of light emitted at different wavelengths. This continuous spectrum is produced as the star emits light across a range of wavelengths leading to a smooth distribution of colors in the spectrum.
The mass of a star can be determined by studying?
binary star systems
