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How do scientists determine the temperature and composition of stars?
Wiki User
∙ 14y ago
preguntale un scientist por que yo no se
Ok who ever wrote the above, get a life because if you write that as an answer it waist everybody else's time.
Ok the answer is they look at what color the star is using a telescope that determines about how hot it is and then they use a spectra of dark lines to determine the elaments it is composed of.
Wiki User
∙ 13y ago
Wiki User
∙ 14y agospectroscopy.
This branch of chemistry uses the colour, and likewise, the wave length of light to determine what chemicals are present during combustion. When compounds are heated, the electrons move between discreet energy levels, and when an electron decreases in energy, it emits radiation, often in the form or visible light. The wavelengths can then be separated and examined with a device called a spectrometer. Neat stuff.
As for the temperature, I'm pretty sure the type of material burning is important fact one, and I would assume important fact 2 for calculating temperature would be mass. The more mass being compacted, the more friction, the more heat there will be. That's just a guess though.
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What characteristics do scientists measure to determine the temperature and composition of stars?
the light radiated from the stars
Is it true that scientists can learn about the chemical composition of stars by analyzing the light they transmit?
Yes
How do you determine a stars luminosity?
To determine a star's luminosity is from size and temperature.
What are the four characteristics that scientists use to classify stars?
Stars are classified by four different characteristics. Apparent magnitude (brightness) and absolute magnitude (how bright it would appear at 10 parsecs from the earth). Luminosity, another measure of brightness, compares the star to the sun's brightness. Spectral classifications are measured by the star's temperatures. Finally stars are signed a number by scientists through the Morgan-Keenan System.
How do scientist determine the surface temperature of the stars?
brightness
What characteristics do scientists measure to determine the temperature and composition of stars?
the light radiated from the stars
What can a star's spectrum tell us?
scientists can tell the stars composition and temperature from its spectrum. Hope tht helps :]
How do scientists determine a stars composition?
Light wavelength and light spectrum i believe.
Scientists determine the composition and temperature of stars?
To determine the chemical composition of stars, scientists look at what's called the emission spectrum of the stars, which can be obtained from the light coming from the stars. Thin lines are observed in different parts of the spectrum, which correspond to different chemicals. In other words, the lines are like fingerprints of chemicals. By looking at these fingerprints, one can determine what type of chemicals are present in the star. To determine the surface temperature of stars, we use the Wien's Law. It states that: Peak wavelength x Surface Temperature = 2.898x10-3 Peak wavelength can be determined by looking at the light coming from the star in question. It is the wavelength with the highest intensity.
What can a scientist learn about from a stars spectrum?
scientists can tell the stars composition and temperature from its spectrum. Hope tht helps :]
What is stellar spectroscopy used for?
The purpose of stellar spectroscopy is to determine the chemical composition of stars, the temperature and some other characteristcs..
Can Scientists learn about the chemical composition of stars by analyzing the light they transmit.?
Scientists can learn the composition of a star from the amount and types of electromagnetic radiation, including light, that it gives off. Additionally, scientists can determine the rate of nuclear fusion from the amount of light released per unit of time.
What do scientists study to learn about the properties of stars?
Scientists study stellar spectra to learn about their properties such as temperature, chemical composition and relative chemical abundances, radial velocity, rotational speed etc.
Is it true that scientists can learn about the chemical composition of stars by analyzing the light they transmit?
Yes
What determines how bright stars are?
Size and temperature determine the brightness of stars.
How do you determine a stars luminosity?
To determine a star's luminosity is from size and temperature.
What are the four characteristics that scientists use to classify stars?
Stars are classified by four different characteristics. Apparent magnitude (brightness) and absolute magnitude (how bright it would appear at 10 parsecs from the earth). Luminosity, another measure of brightness, compares the star to the sun's brightness. Spectral classifications are measured by the star's temperatures. Finally stars are signed a number by scientists through the Morgan-Keenan System.
