Sentences with phrase «giant star puff»

White dwarfs form as the outer layers of a low - mass red giant star puff out to make a planetary nebula.

Not exact matches

Astronomers knew that «sun - like» stars — those with a mass up to about eight times that of the sun — puff up towards the end of their lives into red giants.

Type Ia supernovas are known to form when a white dwarf merges with another star, like a puffed - up red giant (as opposed to Type II supernovas, which form when a single star dies and collapses on itself).

As Vega is so much bigger and hotter than Sol, however, the star will exhaust its core hydrogen after only another 650 million years or so (for a total life of around a billion years) and turn into a red giant or Cepheid variable before puffing away its outer layers to reveal a remnant core as a white dwarf.

As stars like our sun age, they puff up into red giants and then gradually lose about half or more of their mass, shrinking into skeletons of stars, called white dwarfs.

It may be only about 225 to 250 million years old (Liebert et al, 2005; and Ken Croswell, 2005), but being so much bigger and hotter than Sol, the star will exhaust its core hydrogen within only a billion years and turn into a red giant or Cepheid variable before puffing away its outer layers to reveal a remnant core as a white dwarf.

When a sun - like star approaches death, it puffs up into a red giant, shedding its outer layers.