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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 are the 2 factors that brightness of a star is determined by?
How dense it is, and how far away it is.
What are the 4 properties of a star?
The four primary properties of a star are its temperature, luminosity, size, and composition. Temperature affects a star's color and spectral classification, while luminosity measures the total energy output. Size refers to the star's diameter and mass, influencing its gravitational pull and lifecycle. Composition involves the elements present, primarily hydrogen and helium, which determine the star's fusion processes and evolution.
How is a star simmular to the Sun if it has the same absorption lines in its spectrum that occur in the Sun's spectrum?
because they will have the same elements in the atmosphere...
What are some of the star characteristics that can be identified by spectral analysis?
Spectroscopic surveys are based on the fact that the colors you see in everything are not in the object being observed, but is the result of the fact that the elements that make up the object, are reflecting that part of the spectrum of light that strikes it. Spectroscopic analysis will give researchers an idea of the basic makeup of the star.
The chemical composition of a star can be determined using a?
spectrophotometer or laser spectroscope
Can composition of stars can be determined by examining their colors?
Yes, the composition of a star can be determined by analysis of its color, which would be described scientifically as spectrographic analysis.
Which characteristic determines the color of a star?
The colour of the star is determined by its age , mass , and composition.
What makes a star's spectrum appear to be different from another stars?
The chemical composition of the star.
The set of spectral lines that we see in star's spectrum depends on the stars?
composition and temperature. The spectral lines correspond to different elements present in the star and the wavelengths of these lines are affected by the star's temperature. By analyzing these lines, astronomers can determine the chemical composition and other characteristics of the star.
Spectrum indicates what in the stars atmosphere?
The chemical composition of the star atmosphere.
Which property of a star is directly indicated by the lines on its absorption spectrum?
Chemical composition
The spectral type of a star measure?
The spectral type of a star indicates its surface temperature and helps classify it based on the characteristics of its spectrum. It is determined by analyzing the patterns of absorption lines in the star's spectrum, which correspond to different elements present in its atmosphere. Spectral type is important for understanding the physical properties and evolutionary stage of a star.
How does astrophysics connects to chemistry?
Any cosmic object (star, planet, meteorit, comet) has a chemical composition.
Spectrographs help astronomers determine a star's what?
The star's chemical composition; the star's rotation; pulsations of the star; planets or other invisible objects moving around the star; how quickly the star is moving towards us or away from us.
What instrument do the astronomers use to determine the chemical composition of a star?
They use a spectrograph to pass light through a prism to break it the light waves into its constituent colors. Then by looking at what colors are missing they can determine both the temperature and composition of the star.
Instrument used to collect important information about star's composition from the earth?
Spectroscopy is the instrument used to collect important information about a star's composition from Earth. By analyzing the light emitted by a star, spectroscopy can reveal the star's chemical elements and their abundance.
