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How do scientists determine the chemical makeup of the stars?
Different chemicals emit and absorb light at various wavelengths. Astronomers can look at the wavelength of light coming from stars and determine which chemicals must be present.
What were scientists called in Jesus's time?
There were no "scientists". The closest would be the magi who studied the stars and other phenomena. Scribes were learned men, but they were interested in writings, rather than what we now know as the sciences.
Can you extend the concept to figure out what elements are in stars?
Scientists can determine the elements in stars by analyzing the light they emit. This light, called a spectrum, shows specific lines that correspond to elements present in the star's atmosphere. By comparing these spectral lines to known wavelengths of elements on Earth, scientists can identify the elements present in stars.
How scientist discovered that start were made up of hydrogen?
Probably by using a spectrometer, analyzing the light for the colour makeups that identify the different elements uniquely. Stars are made of both Helium and Hydrogen, they are in constant fusion which gives light and heat to our planet, the light can be broken down into different "Wavelengths" which are identified by colour, ranging from IR(Infrared) to UV(UltraViolet) and the rainbow of colours that are visible to the naked eye are between those, hydrogen particles release their own unique combination of these colours in the light they produce.
How does a spectrograph provide information about stars chemical composition?
A spectrograph breaks down the light from stars into its component colors or wavelengths. Each chemical element absorbs and emits light at specific wavelengths, creating a unique fingerprint called a spectral line. By analyzing the spectral lines in a star's light, scientists can determine its chemical composition.
Can stars have different colors?
Stars do have different colours. If you look carefully, you will see that there are differences between the colours of stars. Some are very different in colour to others, but you will only notice if you look at them carefully.
Why do scientists study all wavelengths of the elcetromagnetic spectrum?
Scientists study all wavelengths of the electromagnetic spectrum to gain a comprehensive understanding of the universe. Different wavelengths reveal unique information about phenomena, such as the temperature of stars, the composition of distant galaxies, and the behavior of subatomic particles. By analyzing various wavelengths, researchers can piece together a more complete picture of physical processes, enhancing our knowledge in fields like astronomy, physics, and environmental science. This broad-spectrum approach also aids in the development of technologies and applications across multiple disciplines.
How do scientists learn about stars?
Scientists learn about stars through various methods, primarily using telescopes that capture light across different wavelengths, including visible, infrared, and radio. By analyzing the light from stars, they can determine their composition, temperature, age, and distance. Additionally, astrophysical models and simulations help predict stellar behavior and evolution, while space missions provide direct measurements and observations. Combining these techniques allows scientists to build a comprehensive understanding of stellar phenomena.
What are the evidences for Helium and Hydrogen in sun?
Scientists can determine the contents of stars using spectrometer (spectrograph or spectroscope.) Basically different compounds give off different wavelengths of of light. By measuring the light you can identify the compound.
What is wavelengths a star emits is the stars?
The wavelengths a star emits depend on its temperature and composition, primarily following Planck's law of blackbody radiation. Hotter stars emit shorter wavelengths, shifting towards the blue end of the spectrum, while cooler stars emit longer wavelengths, appearing redder. The spectral lines in the emitted light also provide information about the star's chemical composition and physical conditions. Overall, these wavelengths are key to understanding a star's characteristics and lifecycle.
What do scientists consider a red star?
Scientists consider a red star to be a type of star that has a relatively low surface temperature, typically ranging from about 2,500 to 3,500 degrees Celsius. These stars emit light primarily in the red and infrared wavelengths, giving them their characteristic color. Red stars are often classified as red dwarfs or red giants, depending on their size and stage in the stellar lifecycle. They are generally cooler and less massive than other types of stars, like yellow or blue stars.
Why are stars different coulors?
Different sized stars burn at different temperatures. Different temperatures produce different colours. Stars that are moving away from us will shift their colours towards the red. This is called "Red shift".
