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Radio electro-magnetic emissions are detected by radio telescope (Jordell Bank,England and in Arecibo,Purerto Rica) by astronomers who study thermal radiation from the hot gases ,synchrotron radiation from electrons spiralling in magnetic fields and lines specific waves lengths(hydrogen emit 21 cm line) emitted by atoms and molecules in the interstellar gases in the stars within our galaxy and beyond in radio galaxies and quasars that have helped in learning the composition of stars and also mapping our universe, the spiral structure of the milky way, the crab nebula and pulsars as remains of our universe, the short radio wavelengths from the dense clouds in star formation, and the weak background radiation thought to be the early big bangradiation during the origin of our universe.
karl Jansky first detected radio waves from the centre of our Galaxy in 1932.
What else can I help you with?
What was improved when Han Dynasty astronomers measured how the stars moved?
Calendars and time-keeping.
How did stars help build Mayan temples?
The Mayans were great astronomers. They built their temples according to the way the light would look at different times of day, and therefore, stars made designs on the Mayan structures.
How do scientists learn about galaxies?
they learn by going to a good school and study the stars and planets
Where were greek astronomers ideas most incorrect compared with modern concepts?
Greek astronomers, particularly those like Ptolemy, inaccurately believed in an Earth-centered (geocentric) universe, where all celestial bodies orbited Earth. This model failed to account for the observed retrograde motion of planets and the varying brightness of stars. In contrast, modern astronomy, based on heliocentric principles established by Copernicus and later validated by Kepler and Newton, recognizes that the Sun is at the center of our solar system, with planets in elliptical orbits. Additionally, Greek astronomers had limited understanding of the vastness of the universe and the nature of stars, often viewing them as fixed points on a celestial sphere rather than distant suns.
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 is a 7 letter word for the definition astronomers study these to learn about the properties or stars?
spectra (shows the composition)
How do radio telescopes work to detect and study celestial objects in space?
Radio telescopes work by collecting radio waves emitted by celestial objects in space. These radio waves are then converted into electrical signals that can be analyzed by scientists. By studying these signals, astronomers can learn more about the composition, structure, and behavior of celestial objects such as stars, galaxies, and black holes.
What do astronomers study to learn the properties of stars?
The Spectra.
What are the methods that astronomers use to identiy the composition of distant stars?
Spectroscopy.
By studying the you can learn a great deal about the sizes colors and temperatures of stars?
Studying the spectrum of a star can provide information about its temperature, composition, and motion. By analyzing the absorption and emission lines in a star's spectrum, astronomers can determine its chemical composition, surface temperature, and whether it is moving closer or farther away from Earth. This information helps astronomers understand the physical properties of stars and their roles in the evolution of galaxies.
What did astronomers study to learn about the properties of stars?
spectrums i think...:)
Why do astronomers look at stars through a spectroscope?
To learn what they are made of.
What did astronomers study to learn about properties of stars?
spectrums i think...:)
What do austronamers study to learn about the properties of stars?
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.
Is it true that scientists can learn about the chemical composition of stars by analyzing the light they transmit?
Yes, scientists can analyze the light emitted by stars, known as stellar spectra, to learn about their chemical composition. By studying the absorption and emission lines in the spectrum, scientists can identify the elements present in the star and their relative abundances. This information helps astronomers understand the processes happening within stars and how they evolve over time.
What do astronomers examine to learn about space?
stars, planets, meteors EVERYTHING IN SPACE
Used by astronomers to study stars and planets?
Astronomers use telescopes to study stars and planets by capturing light from these celestial objects and analyzing it. They can gather data on the properties of stars and planets, such as their temperature, composition, and distance from Earth, to deepen our understanding of the universe. Telescopes come in various forms, such as optical telescopes, radio telescopes, and space telescopes like the Hubble Space Telescope.
