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The spectrum shows:
- the "blackbody radiation - a continuous spectrum that is related to the temperature of the surface of the star
- lines that are related to levels of energy that electrons jump, releasing photons, and
- "dark" lines which show energy levels of electrons belonging to elements in the atmosphere or the intervening space which block some radiation
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What are the different colors of all the stars?
Stars can range from blue to red depending on temperature and mass, with yellow stars in the middle and white stars on the back end of the spectrum.
What are 3 things that we can learn about a star by observing it's spectrum?
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.
Where did all the chemical elements in our solar system come from?
Mostly heavy elements are created inside stars and then spread when they go supernova and recondense into new stars and planets.
Are there other elements found in stars than hydrogen and helium?
Yes. All naturally occurring elements in the universe can be found in most stars, though generally only in small concentrations. Massive stars that have depleted the hydrogen in their cores may start producing elements as heavy as iron.
What produces all the known elements in universe other than hydrogen?
fusion reactions in stars
In what ways is the pattern of lines in a stars absorption spectrum unique?
because all of the different lines of a star's elements appear together i its spectrum, making the pattern different everytime
Why is hydrogen and helium found in all stars?
These elements are found in are very important in each of the five stars. all five stars because the elements
Galaxies that show redshift in color must be red in color?
No. You can figure out exactly what elements are in stars and galaxies by examining the color spectrum of the light detected; the frequencies of the bright and dark lines in the spectrum tell you what's what. But there's a problem. For distant galaxies, the light spectrum is wrong. The frequency lines of the spectrum are all too low. One possible explanation of the incorrect spectrum is that those stars and galaxies are MOVING AWAY from us, and that the spectrum is shifted toward the red end of the color spectrum because of the Doppler effect. So scientists believe that the "red-shift" on the color spectrum of stars and galaxies indicate that they are moving away. Not all galaxies show a red-shift; the Andromeda Galaxy, M31, shows a pronounced BLUE-shift, indicating that it is heading TOWARD us. In fact, scientists believe that the Milky Way and Andromeda will probably collide in about 3 billion years.
What are the different colors of all the stars?
Stars can range from blue to red depending on temperature and mass, with yellow stars in the middle and white stars on the back end of the spectrum.
What photographs a spectrum?
A projected spectrum can be photographed by any camera. There are special telescopes that photograph the spectrum of stars, but all it is is a camera that photographs telescopic images projected through a prism into a camera.
What elements does Betelgeuse have?
The same as all stars, hydrogen.
What is formed from stars?
All elements up to Iron are produced by smaller stars. heavier elements (everything heavier then iron) are produced from larger stars when they go supernova.
What is stars form?
All elements up to Iron are produced by smaller stars. heavier elements (everything heavier then iron) are produced from larger stars when they go supernova.
What elements do humans ride in?
Humans ride in all elements. Riding is done to get from one place to another or just for fun, and people do it all the time under a broad spectrum of conditions or in all elements.
How do scientists know the composition of stars?
Mostly by spectrographic observation. Every distinct element radiates exact and specific frequencies of light. By taking a tiny sample of the element and heating it to "glowing hot", we can measure the spectrum of the light that this element gives off. This is how a spectrometer works. In a star, the elements are already at thousands of degrees, so all astronomers need to do is to analyze the spectrum; most stars have spectra that are as distinct as fingerprints to people. We can determine what elements are present, and in what proportions, with considerable accuracy.
What are some of the elements found in stars?
All of them - but mostly hydrogen & helium.
Can The optical spectrum of hydrogen and all other elements consist of a set of discrete lines?
true
