Like every other Star, a Red Giant dies when it has burned all it's fuel and there is no more pressure to keep gravity pushing towards the center.

A red giant star is a dying star in the last stages of stellar evolution. A red giant star is formed when the hydrogen core is used up. This process creates the energy that the star needs to resist the force of gravity that is trying to crush the star together, and also causes the star to light up. Red Giants have hydrogen atoms that combine to form helium atoms once all of the hydrogen turns into helium there is no longer energy to keep the star from collapsing so the gravity takes over and pulls the star into itself.

The age, distribution, and composition of the stars in a galaxy trace the history, dynamics, and evolution of that galaxy. Only low-mass stars with 8 solar masses or less will turn into red giants. Just how different are these red giants and supergiants from a main-sequence star?

The study of stars is an incredibly interesting pastime. Two interesting bodies are red and blue giants. After burning up all of it's fuel.

(Note that red giant stars do not actually look deep red; their colors are more like orange or orange-red.) How do stars form and evolve? After a helium-burning red giant runs out of helium fuel in its core, the star's core starts to collapse and heat up. What’s the process going on inside the Sun that makes this happen?

Star Life Cycle Stars form out … A red giant is much larger than a main sequence star. A red giant forms when a star runs out of hydrogen fuel at its core and starts fusing hydrogen in a shell around the core the core.

Red giant. Nearly 97% of all stars at the end of their lives end up as white dwarfs – extremely dense and hot stars slightly bigger than the size of a planet. This red giant is Aldebaran in the constellation Taurus. At the end of its life, it’s going to bloat up as a red giant, so large that it consumes Mercury and Venus, and maybe even Earth. These giant stars are huge and bright. A good example of a red supergiant is the star Betelgeuse, in the constellation Orion. Table 2 compares the Sun with the red supergiant Betelgeuse, which is visible above Orion’s belt as the bright red star that marks the hunter’s armpit. After that the nuclear reactions will take place "outside" the star which will cause the star to "grow." Stars are the most widely recognized astronomical objects, and represent the most fundamental building blocks of galaxies. Massive Red Supergiant.

Many red giants could fit thousands and thousands of suns like ours inside of them. Understanding the difference can deepen your appreciation of astronomy.

A Red Giant star is formed when a star like our sun, or one larger, runs out of its hydrogen fuel. Red Giants are formed when a star like our sun or one larger runs out of hydrogen fuel.

Most stars of this type are between 200 and 800 times the radius of our Sun . In a red giant a huge, cool, low-density hydrogen envelope (with a density of about 0.1 kilograms/m 3) encloses a small, hot, high-density helium core (with a density of about 1,000 tons/m 3). Many red giants could fit thousands and thousands of suns like ours inside of them. This process takes about 10 Billion years.

As medium sized stars exhaust their hydrogen content, they expand up to 100 times their original size to become red giants. Basically a Red Giant is formed when a Star like our Sun burns all of it's hydrogen to helium and then rearranges itself.

(2) Supergiants and giants with M > 0.4 M sun become hot enough to fuse helium into carbon. The very largest stars in our galaxy, all red supergiants, are about 1,500 times the size of our home star. A red giant is a giant star that has the mass of about one-half to ten times as much as our Sun.Red giants get their name because they appear to be colored red and they are very large. Inside a star, hydrogen atoms are combined together to form helium atoms. A red giant is a giant star that has the mass of about one-half to ten times as much as our Sun.Red giants get their name because they appear to be colored red and they are very large. This causes the outer layers of the star to expand and cool, similar to the process that occurred after the star ran out of hydrogen fuel and left the main sequence. The nuclear fusion reactions occurring within a red giant are H→ He and He→ C. Our Sun will follow this path over the next 5 billion years. Our own sun will turn into a red giant star, expand and engulf the inner planets, possibly even Earth. They are different, however. This causes the star to expand and cool.