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White dwarf
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What is an old dense hot star?
White dwarf
Match each body to its best description A. black hole an old very dense hot star that is cooling B. red giant a large star that is relatively cool C. white dwarf a an object so dense that even light c?
Black hole- an object so dense that even light cannot escape its gravity Red Giant - a large star that is relatively cool White Dwarf - an old, very dense hot star that is cooling Nebula - A mass if gas and dust
Is a red giant an old very dense hot star that is cooling?
No, a red giant is not an old, very dense hot star that is cooling. Instead, it is a late stage in the evolution of a star that has exhausted the hydrogen in its core and is now fusing helium or heavier elements. As a result, the outer layers expand and cool, giving the star its characteristic reddish color. While red giants can be quite large, they are not notably dense compared to other stellar types, like white dwarfs.
Is a white dwarf an old dense cool star?
A white dwarf is the remains of an old star, but they still remain very hot and will continue to shine as a white dwarf for many millions of years until they gradually cool off to become black dwarfs. They are very dense.
What is A small hot dim star that is the left over center of an old star?
This describes a white dwarf, which is a small, dense star that remains after a star has exhausted its nuclear fuel and shed its outer layers. White dwarfs emit heat and light as they slowly cool down over billions of years.
What is a star if you have to explain it to a six year old?
A star is a ball of gas that is very hot and very bright.
What is important about the color of the stars?
the color of the stars usually determines how old and how hot the star is it can also determine when the star will go supernova
What type of star is the leftover center of an old star?
The leftover center of an old star can become either a white dwarf, neutron star, or black hole, depending on its original mass. A white dwarf forms from stars like our Sun, where the outer layers are shed, leaving a hot core that gradually cools. Neutron stars arise from more massive stars that undergo supernova explosions, resulting in a dense core primarily composed of neutrons. If the original star is sufficiently massive, it can collapse into a black hole after its supernova phase.
What is an old very dense hot star that is cooling called?
An old, very dense, hot star that is cooling is called a white dwarf. These stars are the remnants of medium-sized stars that have exhausted their nuclear fuel and shed their outer layers. Over time, they gradually cool and fade, eventually becoming faint stellar remnants known as black dwarfs, though the universe is not old enough for any black dwarfs to exist yet. White dwarfs are primarily composed of electron-degenerate matter, which accounts for their high density.
What does the color tell us about a star?
A star's color tell us how old the star is and how hot the star is. A blue star is very hot and is young, a yellow star is cooler than blue, but hotter than red and is about half way through its lifetime, lastly a red start is cooler than yellow and blue and is near the end of it's life. submitted by: Fabrigar, Lovely Joana Ymas.
What is the size of the old star?
its big but not that big as a old star. sun is a tape of star.
How old is a yellow star?
It can be as old as 10 billion years. Then it increases to the size of a giant and supernova. After that it turns into a small dense white dwarf.
