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 stages of the death of a star?
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.
What is the end of a stars life cycle?
A star like our Sun will
become a white dwarf
when it has exhausted its nuclear fuel. Near the end of its nuclear burning stage, such a star expels most of its outer material (creating a planetary nebula) until only the hot (T > 100,000 K) core remains, which then settles down to become a young white dwarf.
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 are the three end stages of stars?
- White Dwarf.
- Neutrons Star.
- 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 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
.
What happens before a star becomes a supernova?
But as a star burns through its fuel and begins to cool, the outward forces of pressure drop.
When the pressure drops low enough in a massive star, gravity suddenly takes over and the star collapses in just seconds
. This collapse produces the explosion we call a supernova.
What happens if a star goes supernova?
It’s a balance of gravity pushing in on the star and heat and pressure pushing outward from the star’s core. When a massive star runs out of fuel, it cools off. This causes the pressure to drop. … The collapse happens so quickly that it creates
enormous shock waves
that cause the outer part of the star to explode!
What is the last stage of a supergiant?
Stage 9
– The remaining core (thats 80% of the original star) is now in its final stages. The core becomes a White Dwarf the star eventually cools and dims. When it stops shining, the now dead star is called a Black Dwarf.
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 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 7 stages of a star?
- Giant Gas Cloud. A star originates from a large cloud of gas. …
- Protostar. When the gas particles in the molecular cloud run into each other, heat energy is produced. …
- T-Tauri Phase. …
- Main Sequence. …
- Red Giant. …
- The Fusion of Heavier Elements. …
- Supernovae and Planetary Nebulae.
What is the 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.
What color of star is the hottest?
White stars are hotter than red and yellow.
Blue stars
are the hottest stars of all.
What happens to stars as they age?
Stars with higher mass have shorter lifespans. When
the sun becomes a red giant
, its atmosphere will engulf the Earth. During the red giant phase, a main sequence star’s core collapses and burns helium into carbon. After about 100 million years, the helium runs out, and the star turns into a red supergiant.
