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A star that begins as a large cloud of dust and gas is called a protostar. It forms as gravity causes the dust and gas to clump together and initiate the process of nuclear fusion in its core.
a nebula is cloud of particles which forms into a star.
It is called stellar birth or star formation. Gravitational forces cause the cloud to collapse, leading to the formation of a protostar that eventually ignites nuclear fusion to become a full-fledged star.
That would be a nebula, which is an interstellar cloud of hydrogen gas, dust, and plasma. It is the first stage of a star's cycle.
As a nebula, a cloud of gas and dust.
The Jeans mass is the minimum amount of mass needed for a gas cloud to collapse and form a star. When a sound wave travels through a gas cloud, it can cause the cloud to become unstable and collapse if its mass exceeds the Jeans mass. This collapse leads to the formation of a star.
A star is formed out of cloud of cool, dense molecular gas. In order for it to become a star, the cloud needs to collapse and increase in density.
A star is "born" in a large cloud of dust and gas called a nebula
Gravitational force is the most responsible for the contraction of a gas cloud. As gravity pulls gas particles closer together, the cloud becomes denser and eventually leads to the formation of a star or stellar system.
a protostar
a nebula