- White Dwarf.
- Neutrons Star.
- Black Hole.
What are the three end stages of stars Class 8?
- White dwarf. Density of star is very high compared to that of Earth. Small sized and very stable. Appears white in colour. …
- Neutron star. Completely made up of neutrons. Stable in nature. …
- Black hole. Gravitation pull is very strong. Absorbs everything, even the light rays falling on it.
What is the final stage of a massive star?
As the star compacts under its own gravity, it will trigger a massive supernova explosion. Afterward, the final bits of the once-gigantic star will become either
a neutron star or a black hole
.
What is the final state of the most massive stars?
A massive star terminates in a brilliant explosion called
a supernova
. The two possible products of a supernova event are a neutron star or a black hole.
What are the end stages of stars?
A planetary nebula
is the final stage of a Sun-like star. As such, planetary nebulas allow us a glimpse into the future of our own solar system. A star like our Sun will, at the end of its life, transform into a red giant. Stars are sustained by the nuclear fusion that occurs in their core, which creates energy.
What are the three end stages of stars answer in one sentence?
Red Giant Star – The biggest stars go on swelling into supergiants. Pressure at the centre becomes so immense that carbon & silicon fuse to make iron. Supergiant- Once iron forms in its centre, the star fails to give off energy,
& suddenly & catastrophically collapses
.
Where are most stars born?
Star Formation
Stars are born
within the clouds of dust and scattered throughout most galaxies
. A familiar example of such as a dust cloud is the Orion Nebula. Turbulence deep within these clouds gives rise to knots with sufficient mass that the gas and dust can begin to collapse under its own gravitational attraction.
What will our sun eventually become?
In about 5 billion years, the Sun is due to turn into
a red giant
. The core of the star will shrink, but its outer layers will expand out to the orbit of Mars, engulfing our planet in the process.
What stops the collapse of the most massive stars at the end of their lives?
What the calculations are telling us is that
even the force of degenerate electrons
cannot stop the collapse of a star with more mass than this. The maximum mass that a star can end its life with and still become a white dwarf—1.4 M
Sun
—is called the Chandrasekhar limit.
What is the lifespan of a massive star?
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 happens when a massive star dies?
Really massive stars use up their hydrogen fuel quickly, but are hot enough to fuse heavier elements such as helium and carbon. Once there is no fuel left, the star
collapses and the outer layers explode as a ‘supernova’
.
What is the most massive star in the universe?
R136a1
. The star R136a1 currently holds the record as the most massive star known to exist in the universe. It’s more than 265 times the mass of our Sun, more than double most stars on this list. Astronomers are still trying to understand how the star can even exist.
What is the most powerful star in the universe?
- A magnetar is a type of neutron star believed to have an extremely powerful magnetic field (∼10
9
to 10
11
T, ∼10
13
to 10
15
G). … - Like other neutron stars, magnetars are around 20 kilometres (12 mi) in diameter and have a mass about 1.4 solar masses.
What is the heaviest star in the universe?
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 is in a neutron star?
Most of the basic models for these objects imply that neutron stars are composed almost
entirely of neutrons
(subatomic particles with no net electrical charge and with slightly larger mass than protons); the electrons and protons present in normal matter combine to produce neutrons at the conditions in a neutron star.
Why do stars evolve?
Star loses its energy constantly due to continuous emission of light and energy
. This means that the temperature of a star decreases continuously and hence its gas pressure which thereby decreases its stability. … This burning and therefore the decrease in the amount of fuel is the reason for the evolution in the stars.
