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How do you astronomers use spectra to determine the composition of a star?
They pass the light from a star into a diffraction grating, I believe, to give a widely spread out spectrum of the star's light. The elements and compounds present will of course emit (or absorb, I don't remember) light at specific wavelengths, thus identifying the elements present.
What would you expect to see in the color spectrum of a binary star system?
In a binary star system, the color spectrum would typically show two distinct sets of spectral lines corresponding to each star, allowing for the identification of their individual properties such as temperature, composition, and velocity. Depending on their relative brightness and proximity, the combined spectrum may also exhibit Doppler shifts if one star is moving toward or away from the observer. Additionally, if the stars are of different types (e.g., one being a hot blue star and the other a cooler red star), the spectrum will reflect this diversity in color and temperature. Overall, the spectrum would reveal the dynamic interactions and characteristics of the two stars.
What can surge a rock or water or a star?
mattybraps is hot and awesome if someone really knows where he lives tell me
How do the astronomers measure the temperature of the Sun without going there?
Color Scientists use spectrometers to createthe color patterns produced by suns lightThus they can use spectrometer on earth withsome hot source to see what colors it can giveand thus the colors on sun can tell their temperature. This method is called Spectral Classification.
The star Rigel radiates most strongly at about 200 nanometers How hot is it?
Rigel is a blue supergiant star with a surface temperature of around 12,100 Kelvin. It emits most strongly in the ultraviolet part of the spectrum at around 200 nanometers due to its high temperature.
What spectrum is produced by a hot gas under low pressure and appears in a series of bright lines?
An emission spectrum is produced by a hot gas under low pressure, which appears as a series of bright lines. Each bright line corresponds to a specific wavelength of light emitted when electrons transition from higher to lower energy levels within the atoms of the gas.
Which of the three types of spectrum would be observed?
The type of spectrum observed would depend on the source of light. A continuous spectrum is produced by a hot, dense object like a solid, liquid, or dense gas. An emission spectrum is generated by a thin, hot gas, while an absorption spectrum is created by a cooler gas in front of a light source.
What is the difference between a continuous spectrum and a line spectrum in terms of the emission of light?
A continuous spectrum shows a wide range of colors emitted by a hot, dense object, while a line spectrum displays only specific colors at distinct wavelengths emitted by atoms or molecules.
An astronomer finds that the visible spectrum of a mysterious object shows bright emission lines What can the astronomer conclude about the source?
it comes from a hot, tenuous gas
What type of spectrum is produced when the light emitted directly from a hot dense object passes through a prism?
A continuous spectrum is produced when light emitted directly from a hot dense object passes through a prism. This spectrum shows a rainbow of colors with no distinct lines, indicating that all wavelengths of light are present. This type of spectrum is characteristic of a blackbody radiation emission.
How do you astronomers use spectra to determine the composition of a star?
They pass the light from a star into a diffraction grating, I believe, to give a widely spread out spectrum of the star's light. The elements and compounds present will of course emit (or absorb, I don't remember) light at specific wavelengths, thus identifying the elements present.
How is an emission spectrum of an element generated?
All hot solids or dense enough gases emit black body radiation. Gases that are not very dense are are cold absorb particular wavelengths while gases that are not dense but are hot produce their characteristic emission spectrum.
What do the color of the stars mean?
Star colors tell us how hot the star is. For example a red colored star is cool and a blue colored star is hot.
How does spectral analysis allow scientist to know what elements make up a star or rock layer?
It allows scientists to see how hot that star is and what spectrum it has.
Why do hot star appear blue in color?
Because the peak of their blackbody curve is near blue in the spectrum, for the temperature of their photosphere.
The hot Gas in Star Formation Regions emits light because of?
The hot gas in star formation regions emits light due to the intense heating caused by compression and gravitational collapse. This heating excites the gas molecules and causes them to emit radiation across the electromagnetic spectrum, from infrared to ultraviolet. This light is what we observe as the glowing nebulae in star formation regions.
What kind of spectrum do dark lines appear against a bright a bright background of colors ranging from red to blue?
Dark-line spectrum is a "photo-negative" of emission spectrum. It is the gaps that appear in precisely the same location as corresponding bright lines. produced by a cool gas with a hot solid and you
