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.
Astronomers can determine the star's temperature, chemical composition, mass, luminosity, and age by analyzing its spectrum. By studying the absorption and emission lines in the spectrum, astronomers can also infer the star's motion, magnetic fields, and if it has any companions such as planets or other stars.
Astronomers study the spectrum of light emitted by a star to learn about its characteristics. By analyzing the composition of elements, temperature, and density of a star, astronomers can determine its size, age, brightness, and life cycle stage.
Information that you can find about the star by looking at its spectra is its luminosity, surface temperature, its type(common/rare), color, how/if a star is moving, the density, the size, and future of the star. 2. And looking for spectral lines informs as to what elements are present.
Astronomers study spectra to learn about the properties of starts. Spectra (plural of spectrum) is defined as an array of entities, as light waves or particles, ordered in accordance with the magnitudes of a common physical property, as wavelength or mass, and the band or series of colors, together with invisible extensions, produced by dispersion of radiant energy, as by a prism.
No, absorption spectra do not directly tell astronomers if a star is moving towards Earth. Doppler shifts in the absorption lines of a star's spectrum can indicate its motion along the line of sight, but to determine if a star is moving towards Earth, astronomers would typically use techniques such as measuring changes in its position over time through methods like astrometry or observing its spectroscopic radial velocity.
The answer is long and complicated, and it is too long to place here. You need to read an entire encyclopedia articles on spectroscopy and the chemical composition of intersteller objects. D.A.W.
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.
Astronomers can determine the star's temperature, chemical composition, mass, luminosity, and age by analyzing its spectrum. By studying the absorption and emission lines in the spectrum, astronomers can also infer the star's motion, magnetic fields, and if it has any companions such as planets or other 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.
The spectrum of a star provides information about its temperature, composition, and motion. By analyzing the spectrum, astronomers can determine the star's chemical makeup, age, and even whether it is moving toward or away from Earth.
Astronomers study the spectrum of light emitted by a star to learn about its characteristics. By analyzing the composition of elements, temperature, and density of a star, astronomers can determine its size, age, brightness, and life cycle stage.
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.
Information that you can find about the star by looking at its spectra is its luminosity, surface temperature, its type(common/rare), color, how/if a star is moving, the density, the size, and future of the star. 2. And looking for spectral lines informs as to what elements are present.
Astronomers study spectra to learn about the properties of starts. Spectra (plural of spectrum) is defined as an array of entities, as light waves or particles, ordered in accordance with the magnitudes of a common physical property, as wavelength or mass, and the band or series of colors, together with invisible extensions, produced by dispersion of radiant energy, as by a prism.
MY ANSWER IS....SPECTROSCOPE....because stars can seen through spectroscope...:)) sorry kung ganito lang kasimple yung answer ko...im just a grade 6 pupil lang kasi.. nice to meet you all... -Dulce Dumapias...add me on facebook..ahaha:)) see you there..:))
There is one way for gathering information about chemical composition of stellar objects - spectral analysis! Astronomical spectroscopy began with Isaac Newton's initial observations of the light of the Sun, dispersed by a prism. He saw a rainbow of colour, and may have seen absorption lines. The absorption lines in stellar spectra can be used to determine the chemical composition of the star.
No, absorption spectra do not directly tell astronomers if a star is moving towards Earth. Doppler shifts in the absorption lines of a star's spectrum can indicate its motion along the line of sight, but to determine if a star is moving towards Earth, astronomers would typically use techniques such as measuring changes in its position over time through methods like astrometry or observing its spectroscopic radial velocity.