Describe the life cycle of a star like the sun?

Answer 1

The lowest mass stars are the red dwarfs, which have a mass of less that half that of our own sun, down to a mass of only 7.5% of our suns mass. So our sun is between 2 - 13 times more massive. Red dwarf temperatures and brightnesses are a lot lower, but they burn fuel much more slowly so have much longer lifetimes.

Answer 2

It starts off in a stellar nursery nebula, where some gas slowly condenses until the pressure is enough to raise the temperature high enough to start hydrogen fusion. It then starts the main sequence when the core fuses hydrogen in to helium but the star can't fuse the matter outside the core via convection because the gravity is too strong to let material out of the core. Many (usually >10) billions of years later, all of the hydrogen in the core has been fused into helium and because the temperature isn't high enough to fuse helium, fusion stops. The core then shrinks as there is a sudden lack of outward force from fusion to support its own gravity. As it shrinks, the temperature suddenly shoots upwards (from the increased pressure), and the hydrogen outside the core reaches fusion temperature from this. Being further away from the centre of gravity, the outer layers expand into a red giant star and are simply ejected into space from their momentum. This outer fusion then finally pushes the core past the fusion temperature of helium and it restarts fusion, this time into carbon. However, this time, the star is never able to reach the carbon fusion temperature and the core stays shrunken, slowly cooling. This is a white dwarf, which will truly die when it becomes a black dwarf after emitting all its remaining energy.

Answer 3

A star like the Sun goes through different stages in its life cycle. It starts as a cloud of gas and dust (nebula) and forms into a protostar. As the protostar contracts, nuclear fusion starts in its core, turning hydrogen into helium, which powers the star. This stage lasts for billions of years until the hydrogen fuel runs out, causing the star to expand into a red giant. Eventually, the outer layers are ejected, forming a planetary nebula, leaving behind a hot core called a white dwarf.

Answer 4

lool it up on a diffent website cuz this one doesnt have the flippin answer.

Answer 5

No. The sun is a medium-mass star.