Massive stars transform into
supernovae, neutron stars and black holes
while average stars like the sun, end life as a white dwarf surrounded by a disappearing planetary nebula. All stars, irrespective of their size, follow the same 7 stage cycle, they start as a gas cloud and end as a star remnant.
What are the phases of a star life cycle?
Step
1 – Green –
A cloud of gas and dust collapses due to gravity, creating a protostar. Step 2 – Blue – Gravitational energy powers the young star until… Step 3 – Yellow – … nuclear fusion occurs.
What are the 6 stages of a star?
- STAGE 1: AN INTERSTELLAR CLOUD.
- STAGE 2: A COLLAPSING CLOUD FRAGMENT.
- STAGE 3: FRAGMENTATION CEASES.
- STAGE 4: A PROTOSTAR.
- STAGE 5: PROTOSTELLAR EVOLUTION.
- STAGE 6: A NEWBORN STAR.
- STAGE 7: THE MAIN SEQUENCE AT LAST.
What are the 5 stages of an average star?
- A nebula. A star forms from massive clouds of dust and gas in space, also known as a nebula.
- Protostar. As the mass falls together it gets hot.
- Main sequence star.
- Red giant star.
- White dwarf.
- Supernova.
- Neutron star or black hole.
What is star death called?
While most stars quietly fade away, the supergiants destroy themselves in a huge explosion, called
a supernova
. The death of massive stars can trigger the birth of other stars.
What color of star is the hottest?
White stars are hotter than red and yellow.
Blue stars
are the hottest stars of all.
What is the massive star life cycle?
Any star which is
larger than eight solar masses during its regular main sequence
lifetime is considered a massive star. They typically have a quick main sequence phase, a short red supergiant phase, and a spectacular death via a supernova explosion. … When nuclear fusion begins, a star is born.
How long do stars live for?
Generally, the more massive the star, the faster it burns up its fuel supply, and the shorter its life. The most massive stars can burn out and explode in a supernova after only
a few million years of fusion
. A star with a mass like the Sun, on the other hand, can continue fusing hydrogen for about 10 billion years.
What is the life cycle of a small star?
Small stars, like the Sun, will undergo a relatively
peaceful and beautiful death
that sees them pass through a planetary nebula phase to become a white dwarf, which eventually cools down over time and stops glowing to become a so-called “black dwarf”.
What is an average star like?
An average star will burn with a medium temperature and an
orange, yellow, or blue-white color
for tens of billions of years on the main sequence.
How does a star start?
Stars form
from an accumulation of gas and dust, which collapses due to gravity and starts
to form stars. The process of star formation takes around a million years from the time the initial gas cloud starts to collapse until the star is created and shines like the Sun. … Without this dust and gas, stars would not form.
How is a star born step by step?
A star is born when atoms of light elements are
squeezed under enough pressure for their nuclei to undergo fusion
. All stars are the result of a balance of forces: the force of gravity compresses atoms in interstellar gas until the fusion reactions begin.
What is the biggest star?
The cosmos is full of objects that defy expectations. Although it’s difficult to pin down the exact traits of any given star, based on what we know, the largest star is
UY Scuti
, which is some 1,700 times as wide as the Sun.
What happens after a star dies?
When the helium fuel runs out, the core will expand and cool. The upper layers will expand and eject material that will collect around the dying star to form
a planetary nebula
. Finally, the core will cool into a white dwarf and then eventually into a black dwarf. This entire process will take a few billion years.
Do stars twinkle?
As light from a star races through our atmosphere, it bounces and bumps through the different layers, bending the light before you see it. Since the hot and cold layers of air keep moving, the
bending of the light changes
too, which causes the star’s appearance to wobble or twinkle.
What is the hottest color?
No matter how high a temperature rises,
blue-white
is the hottest color we are able to perceive.
