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A red giant becomes a planetary nebula when it exhausts its nuclear fuel and undergoes helium fusion in its core. Once the helium is depleted, the outer layers of the star are ejected into space, forming a glowing shell of ionized gas. This process typically occurs in stars with masses similar to or less than that of the Sun, leading to the final stages of stellar evolution before the core remains as a white dwarf.

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2w ago

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How do you use planetary nebula in a sentence?

A planetary nebula consists of gas ejected from old red giant stars.


The gases that drift away from a red giant are called?

Planetary Nebula


An average star wiill eventually becomes a?

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.


What is the cycle of the stars?

Stellar Nebula - Average Star- Red Giant - Planetary Nebula - White Dwarf Stellar Nebula - Massive Star - Red Super Giant - Super Nova- Neutron Star Stellar Nebula - Massive star - Red Super Giant -Super Nova - Black Hole


What remnant of a red giant is called?

A remnant of a red giant is called a planetary nebula or a white dwarf, depending on the mass of the original star. When a red giant exhausts its nuclear fuel, it sheds its outer layers, creating a colorful shell of gas known as a planetary nebula. The core that remains can become a white dwarf, which is a hot, dense stellar remnant that gradually cools over time.


What is an ejected envelop of a red giant star?

Typically it is called a planetary nebula. It has nothing to do with planets.


What's happening to red giant?

they become a nebula


Select the star cycle that is accurate?

Star of one stellar mass, red giant, white dwarf, planetary nebula


What the star life cycle the is accurate?

Star of one stellar mass, red giant, white dwarf, planetary nebula


Whats the life cycle of the stars?

A star's life cycle starts from a nebula. For giant stars, the star turns into a huge star to a super red giant to a supernova to a black hole. A sun-like star turns to a red giant, then a planetary nebula, a white dwarf, and then a black dwarf.


What will your sun be when it dies?

It will become a Red Giant and then it will slowly fade away into a new nebula.


What do red giants become after they run out of fuel?

They explode as a supernova/hypernova to form a planetary nebula/black hole.