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Nebular Theory (Galaxies :milky_way: (Dust and gas (Gas (Hydrogen), Dust…
Nebular Theory
Galaxies :milky_way:
Forms long before a star
Dust and gas
Gas
Hydrogen
Dust
ice :snowflake:
Rock
Gravity pulls together
Collapse
Stars can now form :star:
Much bigger than a solar system
A black hole is at the center of every universe :black_circle:
Solar System
Solar System forms around new star :star:
Much smaller than a galaxy
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A star is at the center
Star :star:
Starts as a Nebula
A nebula is a cloud of dust and gas
Gravity pulls gas and dust together into a disk shape
Fusion begins and star is formed :star:
Small star
Our sun is a small star
Fuses Hydrogen into helium
Massive star
Ten times or more massive than a star the size of our sun
Fuse Hydrogen into helium
Red supergiant :red_circle:
When the star only has iron left gravity collapses the star and it goes supernova. :explode:
After a supernova, only the core remains
If the core is four times the mass of our sun, it becomes a nuetron star
If the core is more than five times the mass of our sun, the core collapses into a black hole :black_circle:
Not even light can escape
A hole in space
Red Giant :red_circle:
The star is out of hydrogen and tries to fuse heavier elements like carbon and oxygen
The outer layer spreads out and cools
When the star runs out of helium the star expands and leaves behind a white dwarf :white_circle:
When the white dwarf runs out of remaining energy, it becomes a black dwarf :black_circle:
Our universe is to young to have black dwarfes
The mass determines how long the star lives
bigger stars burn their fuel faster
Smaller stars have longer lives