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Astronomers use the patterns of lines observed in stellar spectra to sort stars into a spectral class. Because a star’s temperature determines which absorption lines are present in its spectrum, these spectral classes are a measure of its surface temperature. There are seven standard spectral classes.
What else can I help you with?
What is a Hertzsprung-Russell diagram and how do astronomers use it?
i really o not understand the significance of the question that is asking
What do astronomers use to determine the chemical composition in star?
The light that comes from the star. The light is spread out into its spectrum and the pattern of spectral lines allow the composition (and temperature) to be determined. The temp can also be found by looking at the black body curve for the star (also from spectrum), or, by looking at the color of the star (difference in intensity of the light through two different color filters typically B and V. The light that comes from the star. The light is spread out into its spectrum and the pattern of spectral lines allow the composition (and temperature) to be determined. The temp can also be found by looking at the black body curve for the star (also from spectrum), or, by looking at the color of the star (difference in intensity of the light through two different color filters typically B and V.
What did the astronomers of Babylon map?
the astromers of babylon mapped the stars and the plants
What kind of an impact did Aratus have on other astronomers?
Aratus knew quiet a bit about the stars. He was able ( through his writings ) to give the location of all the constalations he knew of. I guess he struck other astronomers for his knowledge about the stars: knowledge it took them a while to gain.
Can i see Astronomers with powerful telescopes can see all the stars in the milky way?
No. Approximately 6000 stars can be seen with the naked eye, but there are many trillions of star out there that we can NOT see with the naked eye. Even the closest star after the Sun - Proxima Centauri - can't be seen without telescopes.
How do astronomer's use spectral analysis to classify stars?
a lot
Who classifies stars?
Astronomers classify stars.
What are the 4 variables astronomers use to classify stars?
Astronomers use temperature, luminosity, size, and color to classify stars. These factors help categorize stars into different spectral types and determine their position on the Hertzsprung-Russell diagram.
What are the four variables astromeners use to classify stars?
The four variables astronomers use to classify stars are temperature, luminosity, size or radius, and mass. By analyzing these properties, astronomers can determine a star's position on the Hertzsprung-Russell diagram and classify it into different spectral types and stages of stellar evolution.
What does the hr diagram compare?
The HR diagram compares the luminosity (brightness) of stars against their surface temperature or spectral type. This plot helps astronomers classify stars based on their intrinsic characteristics and evolutionary stages.
How do we find out the composition of stars?
Spectral analysis.
What does the spectral type of a star measures what?
The spectral type of a star measures its temperature and determines its color, luminosity, and size. It is determined by the characteristics of the star's spectrum, such as the absorption lines caused by elements in its atmosphere. Astronomers use spectral types to classify stars based on their physical properties.
What are some characteristics used to classify stars?
In Astronomy stars can be classified by theircolor (temperature)composition (as found by their spectrum)agelocation in a galaxymassproximity to other stars
What do astronomers use HR diagrams for?
To compare and classify stars.
What used to help humans determine the temperature of stars?
spectral analysis
What is used to help humans determine temperature of the stars?
spectral analysis
What provides info about the chemical composition of stars?
The composition is determined by spectral analysis.
