Imagine the inside of an Orange Juice carton and the inside of a milk carton. It is exactly like that only to a bigger scale.
begins to collapse under its own gravity due to a disturbance, such as a shockwave from a nearby supernova. As the nebula collapses, it heats up and the particles within it start to come together, initiating the formation of a protostar.
it's a protostar
The Horsehead Nebula is a dark nebula located in the constellation Orion. It is a cloud of dust and gas that is backlit by a nearby bright star, giving it the distinctive shape that resembles the head of a horse. The nebula is a popular target for astrophotography due to its striking appearance.
Early attempts to explain the origin of this system include the nebular hypothesis of the German philosopher Immanuel Kant and the French astronomer and mathematician Pierre Simon de Laplace, according to which a cloud of gas broke into rings that condensed to form planets. Doubts about the stability of such rings led some scientists to consider various catastrophic hypotheses, such as a close encounter of the Sun with another star. Such encounters are extremely rare, and the hot, tidally disrupted gases would dissipate rather than condense to form planets.
The biggest time difference in the world between two locations is 26 hours. This difference occurs between Baker Island and the Line Islands in the Pacific Ocean.
protostar or nebula
The nebula forms into a protostar.
the protostar
a protostar
A nebula comes first; it is a large cloud of gas and dust in space. Under the influence of gravity, regions within the nebula can collapse to form a protostar. As the material falls inward, the protostar heats up and begins the process of nuclear fusion, eventually leading to the formation of a star.
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.
Emission nebula glow and reflection nebula reflect the light form other stars
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.
The force that turns a nebula into a protostar is gravity. As regions within a nebula become denser due to slight fluctuations in density, gravity pulls the surrounding gas and dust inward, causing the material to clump together. This process leads to the formation of a protostar as the collapsing material heats up and begins to accumulate mass. Once the temperature and pressure in the core become sufficient to initiate nuclear fusion, the protostar evolves into a main-sequence star.
it is plop of a difference
After a nebula, the next stage in the life cycle of a star is usually a protostar, where gravity causes the gas and dust within the nebula to begin collapsing and forming a dense core. Following this stage, the protostar may evolve into a main sequence star, where nuclear fusion begins in its core and it enters a stable period of energy production.
The matter from a nebula that has begun to condense under gravity to form a star is called a protostar. As gravity causes the protostar to contract, the core temperatures rise until nuclear fusion ignites, and a star is born. This marks the transition from a cloud of gas and dust to a shining star.