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Is a star's outer layer hot and dense?
Yes, a star's outer layer, called the photosphere, is hot and dense. This is where most of the visible light and heat emitted by the star originate. The temperature and density of the photosphere vary depending on the type and age of the star.
What causes the star to eject its outer layer?
Stars eject their outer layers during the final stages of their lives due to the depletion of nuclear fuel in their core. The core contracts, while the outer layers expand and may eventually be expelled in events like supernovae or planetary nebulae formation.
Which star expands due to fusion?
As a star ages and runs out of fuel in its core, it can expand in size as it transitions into a red giant. During this phase, fusion reactions occur in the outer layers of the star, causing it to expand and cool. This expansion happens when the star exhausts its hydrogen fuel and begins fusing helium in its core.
Which stage does a stars lose most of its mass?
A star loses most of its mass during the later stages of its life, particularly during the red giant phase and eventually during a supernova explosion. The star sheds outer layers of gas and dust, releasing a significant amount of its mass back into space.
What is produced when the outer core of star explodes after the core collapses?
Supernova
Is the Photosphere the outer layer on a star?
Magnetosphere is the layer above the photospere.
When a red giant loses its outer layer and the core shrinks to one millionth of its original size what type of star is formed?
When a red giant loses its outer layer and the core shrinks, it can form a white dwarf. White dwarfs are dense, Earth-sized remnants of low to medium mass stars that have exhausted their nuclear fuel.
Is a star's outer layer hot and dense?
Yes, a star's outer layer, called the photosphere, is hot and dense. This is where most of the visible light and heat emitted by the star originate. The temperature and density of the photosphere vary depending on the type and age of the star.
Where on a star is the photosphere?
The photosphere is the outer part of the star that is visible, inside which the star becomes opaque to visible light. The photosphere is the layer below the star's atmosphere (the chromosphere, and so forth).
When a red giant loses its outer layers and the core shrinks to one - millionth of its original size what type of star is formed?
A white dwarf.
When a red giant loses its outer layers and the core shrinks to one millionth of its original size what type of star is formed?
white dwarf
When red giant loses its outer layers and the core shrinks to one-millionth of its original size what type of star is formed?
white dwarf
When a red giant loses its outer layers and the core shrinks to one-millionth of its original size what type of star is formed?
white dwarf
What happens during the life cycle of a star with two or three stellar masse?
A low mass star begins as the helium fuses into carbon and the core collapses. The outer layer of the star are expelled and form a new planetary nebula. The core remains as a white dwarf and cooled to become a black dwarf.
What is formed when an average size star uses up it's fuel and it outer layer expands?
A Red Giant
How do different scientists spectra to figure out the composition of a star's outer layer?
The color of the light radiated by the spectra can show the internal composition as well as the gases burning on the outer layer. Red stars are colder and blue stars are hotter.
What happens to a small star when it runs out of fuel?
When a small star runs out of fuel, it expands into a red giant before shedding its outer layers to form a planetary nebula. The core that remains cools down to become a white dwarf, which gradually fades away over billions of years as it loses its heat and light.
