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What stage comes after nebula in the star stage?
The stage that comes after the nebula in the star's life cycle is the protostar stage. During this stage, gravity causes the gas and dust within the nebula to clump together and heat up, eventually forming a dense, hot core. This marks the beginning of nuclear fusion within the protostar.
When does a protostar become a star?
The basic idea is that the protostar contracts, under the influence of gravity, until it gets dense and hot enough to undergo nuclear fusion. You can find more details at the Wikipedia article "Protostar".
What is a star called before it is born?
A star is called a protostar before it begins nuclear fusion in its core and officially becomes a star. During this stage, a protostar is formed from a collapsing cloud of gas and dust, as gravity pulls material together and heats up the core.
What does gravity do in the protostar?
In a protostar, gravity plays a crucial role by pulling gas and dust together from the surrounding molecular cloud. As the material collapses under its own gravitational pull, it increases in density and temperature, eventually leading to the formation of a hot core. This process continues until nuclear fusion begins, marking the transition from a protostar to a main-sequence star. Essentially, gravity is the driving force that initiates star formation and dictates the structure and evolution of the protostar.
What two forces are within a protostar?
Gravitational force - which pulls matter towards the center of the protostar and is responsible for its contraction. Thermal pressure - which is generated by the heat and pressure within the protostar's core and pushes outward to counteract the gravitational force.
What is it called when the nebula begins collapsing and turning into a small spinning cloud?
This stage is called protostar formation. As the nebula collapses due to gravity, it begins to spin faster and forms a hot, dense core known as a protostar. This marks the beginning of the process that will eventually lead to the formation of a new star.
How hot must the core of a protostar be to begin nuclear fusion?
The core of a protostar must reach temperatures of at least 10 million degrees Celsius for nuclear fusion to begin. At this temperature, hydrogen atoms can overcome their mutual repulsion and fuse to form helium, releasing energy in the process.
What stage comes after nebula in the star stage?
The stage that comes after the nebula in the star's life cycle is the protostar stage. During this stage, gravity causes the gas and dust within the nebula to clump together and heat up, eventually forming a dense, hot core. This marks the beginning of nuclear fusion within the protostar.
A protostar forms once the nebular cloud condenses and the core begins?
to grow dense and hot due to gravitational contraction. As the core heats up, it triggers the start of nuclear fusion, becoming a main sequence star.
When does a protostar become a star?
The basic idea is that the protostar contracts, under the influence of gravity, until it gets dense and hot enough to undergo nuclear fusion. You can find more details at the Wikipedia article "Protostar".
What is a star called before it is born?
A star is called a protostar before it begins nuclear fusion in its core and officially becomes a star. During this stage, a protostar is formed from a collapsing cloud of gas and dust, as gravity pulls material together and heats up the core.
What reaction occurs in a protostar that has becomes very hot?
garbanzos
What does gravity do in the protostar?
In a protostar, gravity plays a crucial role by pulling gas and dust together from the surrounding molecular cloud. As the material collapses under its own gravitational pull, it increases in density and temperature, eventually leading to the formation of a hot core. This process continues until nuclear fusion begins, marking the transition from a protostar to a main-sequence star. Essentially, gravity is the driving force that initiates star formation and dictates the structure and evolution of the protostar.
What two forces are within a protostar?
Gravitational force - which pulls matter towards the center of the protostar and is responsible for its contraction. Thermal pressure - which is generated by the heat and pressure within the protostar's core and pushes outward to counteract the gravitational force.
What must happen before a protostar will glow?
Before a protostar can start glowing, it must finish collecting enough gas and dust to trigger nuclear fusion in its core. This process requires the protostar to reach a temperature and pressure high enough for hydrogen atoms to fuse together, releasing energy as light and heat.
Is the sun a protostar?
No, the sun is not a protostar. It is a mature star that is in the main sequence phase of its life cycle, where it fuses hydrogen into helium in its core. A protostar is a young star that is still in the process of accumulating mass and contracting before it begins hydrogen fusion in its core.
What is a contracting cloud of gas and dust with enough mass to form a star?
it's a protostar
