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.
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 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.
they become a nebula
No, the Sun is not a planetary nebula; it is a main-sequence star. A planetary nebula is a stage in the life cycle of certain stars, typically those with a mass similar to or less than that of the Sun, that occurs after they exhaust their nuclear fuel and expel their outer layers. The Sun will eventually become a red giant and then evolve into a planetary nebula in about 5 billion years, but currently, it is still in the main-sequence phase of its life.
They explode as a supernova/hypernova to form a planetary nebula/black hole.
A planetary nebula consists of gas ejected from old red giant stars.
Planetary Nebula
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.
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
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.
Typically it is called a planetary nebula. It has nothing to do with planets.
they become a nebula
Star of one stellar mass, red giant, white dwarf, planetary nebula
Star of one stellar mass, red giant, white dwarf, planetary nebula
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.
It will become a Red Giant and then it will slowly fade away into a new nebula.
They explode as a supernova/hypernova to form a planetary nebula/black hole.