When a planetary nebula dissipates, what remains is the core of the star that has shed its outer layers. This core, known as a white dwarf, is extremely dense and hot, gradually cooling over billions of years. The planetary nebula itself, which is the glowing gas and dust expelled by the dying star, eventually disperses into space.
When the core of a star blows its surface into space to form a planetary nebula, it sheds its outer layers of gas, exposing the hot, dense core of the star called a white dwarf. The white dwarf emits ultraviolet radiation that ionizes the ejected gas, causing it to glow and form the planetary nebula.
A star like our sun will shed a planetary nebula after its 'death'
A planetary nebula is created when a low- to medium-mass star reaches the end of its life cycle and sheds its outer layers of gas into space. This process exposes the hot core of the star, which emits ultraviolet radiation that causes the surrounding gas to glow and form a colorful nebula.
After a planetary nebula occurs, the core of the star collapses and becomes a white dwarf. This white dwarf slowly cools down over billions of years until it eventually becomes a cold, dark remnant known as a black dwarf.
After a planetary nebula the oxygen in the middle will make it turn into a blackhole or neutron star.
A white dwarf is the core of a dead star. As the star runs out of fuel, it expands into a red giant, as the shell of the red giant became a planetary nebula, and the core shrinks and became a white dwarf.
A giant star is a dying star that expanded, and the core shrinks are the same time. When the shell of the giant star drift into space as planetary nebula, the core became a white dwarf. The white dwarf is made from the core of the giant star.
A planetary nebula is a glowing shell of gas and dust formed by a star shedding its outer layers at the end of its life. Despite its name, it has nothing to do with planets. The glowing gas is illuminated by the hot core of the star left behind, known as a white dwarf.
A planetary nebula forms after a main sequence star casts off its outer layers. The ejected gas and dust create a beautiful glowing shell of ionized gas that surrounds the remaining hot core of the star, known as a white dwarf.
An average star like our sun will eventually become a red giant as it exhausts its nuclear fuel. After that, it will shed its outer layers to form a planetary nebula and leave behind a dense core called a white dwarf.
A sunlike star goes through the following stages in its life cycle: nebula, protostar, main sequence star, red giant, planetary nebula, and finally white dwarf. During the main sequence stage, the star fuses hydrogen into helium in its core, releasing energy. Once it exhausts its hydrogen fuel, it expands into a red giant before shedding its outer layers to form a planetary nebula. The remaining core becomes a white dwarf, cooling down over billions of years.