What kind of spectrum does the sun have quizlet?
-The Sun’s spectrum is an absorption line spectrum, which is produced when continuous light from a hot source (the Sun’s interior) passes through a cooler cloud of gas (the gas that makes up the Sun’s visible surface).
Why is sunlight a continuous spectrum?
The continuous spectrum of the visible photosphere of the Sun is attributable to the radiative equilibrium of the H− ion. This ion forms by the attachment of a free electron (with a continuous spectrum of energies) to a hydrogen atom, emitting a continuous spectrum of photons in the process.
Is the sun absorption spectrum?
The Sun produces an absorption spectrum, with dark lines across its spectrum. Chemical elements in the Sun’s corona absorb specific wavelengths of light so their electrons are excited to higher energy levels.
What causes Fraunhofer?
Fraunhofer lines, in astronomical spectroscopy, any of the dark (absorption) lines in the spectrum of the Sun or other star, caused by selective absorption of the Sun’s or star’s radiation at specific wavelengths by the various elements existing as gases in its atmosphere.
What can a spectroscope tell us?
Spectrographs collect data that tell scientists how much light comes out at each wavelength. These data reveal important details about the makeup of atmospheres on exoplanets, the compositions of stars and nebulas, the motion of galaxies and more.
What do Fraunhofer lines tell us?
The Fraunhofer lines are a set of famous absorption lines named after a German physicist. The Fraunhofer lines are, indeed, a lifeline of solar physicists. The depths of the absorption lines provide information about temperature, and the wavelength shifts of the lines tell us the motion of gas.
What does Fraunhofer mean?
Fraunhofer is a lunar crater that is located just to the south-southwest of the walled plain Furnerius, in the southeastern part of the Moon. This crater appears foreshortened when viewed from the Earth, and is actually nearly circular.
Which spectrum contains dark lines?
Emission spectrum: bright lines on dark background. Absorption spectrum: dark lines superimposed on a continuous spectrum (shown in black & white because the subtle dark lines are hard to reproduce in color).
What is Corona in sun?
Definition: Corona is a luminous envelope of plasma that surrounds the Sun and other celestial bodies. It is extended to millions of kilometres into space and is commonly seen during a total solar eclipse. Description: The corona of the Sun is much hotter than its visible surface.
What part of the sun is the coolest?
What part of the sun is hottest?
Can the sun turn black?
In the parts of the corona where the particles leave the sun, the glow is much dimmer and the coronal hole looks dark. ‘Coronal holes are lower density and temperature regions of the sun’s outer atmosphere, known as the corona,’ explained Nasa.
Is anything hotter than the sun?
Scientists have produced superheated gas exceeding temperatures of 2 billion degrees Kelvin, or 3.6 billion degrees Fahrenheit. This is hotter than the interior of our Sun, which is about 15 million degrees Kelvin, and also hotter than any previous temperature ever achieved on Earth, they say.
What is the hottest matter on earth?
By zapping a piece of aluminum with the world’s most powerful x-ray laser, physicists have heated matter to 3.6 million degrees Fahrenheit (2 million degrees Celsius)—making it briefly the hottest thing on Earth. Only locations such as the heart of the sun or the center of a nuclear explosion are hotter.
Why is fire white?
You can make fire burn with a pure white flame. White is an elusive fire color because the fuel that supports a flame burns with its own characteristic spectrum.