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What is the term for swirling clouds of hydrogen gas out of which stars are born?
Wiki User
∙ 12y ago
I think its called a nebula
Wiki User
∙ 12y ago
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What is the role of gravity in the life cycle of a star the size of your sun?
Gravity is related to mass. The more mass there is, the greater the force of gravity. Stars form from vast clouds of hyrogen in space over many years. As the hydrogen forms together under gravity it heats up, to the point at which nuclear reactions can take place and a star is born. The more hydrogen that there is available, the larger the star.
What is the fate of stars?
Star Birth as a Protostar. Stars are born within molecular clouds in the Galaxy. The mass of a protostar determines its place on the H-R diagram, its energy source, its ultimate fate. Then, the final stage when the core is fused to iron.
Do you know what the sky is made of?
It takes millions of years for free floating diatomic molecules of hydrogen gas in space to congregate in sufficient quantity to produce a protostar (the first stage). The collapse of the gas usually requires some event, such as a collision between gaseous nebula which tend to be inelastic, or the shockwave from a supernova, or the wake of a black hole. Any of these events can nudge gravity to coalesce the gas into a "brown dwarf."When a brown dwarf has gained enough mass to emit its own light and heat via gravitational collapse, it becomes known as a "protostar." Protostars require 100,000 to a few million years to gain sufficient mass, core heat and pressure, to commence nuclear fusion, even though they can appear as bright as a "true" star. The most common true star is known as a T-Tauri star.Nuclear fusion occurs as protons of hydrogen combine with neutrons to form helium nuclei (alpha particles). This process takes place in the core of the star, where the temperature is in the millions of degrees and the pressure is extremely high. Nuclear ignition is the point at which one may say a star is "born," and the resulting solar wind slows or halts the infalling nebular gas. Any remaining gas the star pulls into itself would come primarily from what is known as a protoplanetary accretion disk, usually forming parallel to the star's rotational axis.Helium comes from the word helios, meaning "sun." The helium nucleus is lighter than its constituent parts--the two protons and neutrons of which it is formed. This difference is known as the "mass defect," and is equivalent to the energy liberated in the fusion process. So in its gestational state a protostar shines via gravitational collapse, until the core pressure and temperature is great enough for nuclear fusion, at which point the star shines by the nuclear fusion reaction.Larger stars are less common, but can form in less time, such as by the collision of numerous protostars.they are created with hot gasses from the nebula or really hot or exploded stars I believeA star is born when gas and clouds of dust is forced/pushed together and forms a beautiful star.they are created with hot gasses from the nebula or really hot or exploded stars I believeA star is born when gas and clouds of dust is forced/pushed together and forms a beautiful star.
A protostar becomes a star when energy is released by the process of?
Massive clouds of hydrogen gas/dust are pushed together randomly by solar winds and over millions of years their weak gravitational forces pull them closer and closer, getting stronger and stronger as the protostar becomes more dense until it finally implodes violently, the pressure at it's core reaching temperatures of many millions of degrees, which is enough to cause thermonuclear reaction, thus igniting a new star.
How do dying stars form planets?
They don't - new born stars and planets are formed together.
When stars are born what are they made of?
Stars are often formed out of Hydrogen, they get the Hydrogen from clouds of either Hydrogen gas (H₂) or ionized Hydrogen, which is Hydrogen that is missing an electron. Both of those substances are found in space clouds and nebulae; nebulae (singular nebula), are the birthplace of many of the different things in the Universe, and contain traces of almost all of the stable elements. Stars will form from hydrogen and anything else that gets sucked into them in formation, and eventually form a rough sphere, and turn Hydrogen into Helium, and heavier atoms, until the star dies. TLDR; Stars are born from mostly Hydrogen, but have other space junk
Do clouds has a nebula?
No, a nebula is a place where stars are born. Stars and clouds are very different.
Where in the galaxy are most stars born?
Stars are born in areas of space that contain a high enough density of molecular hydrogen to cause fusion. These areas of space are known as molecular clouds and are the locations in space where the majority of stars are created.
What are the clouds of dust and gas where stars are born?
The answer is actually Nebulae.
What are clouds of dust and gas where stars are born?
The answer is actually Nebulae.
How do stars age and die?
stars are born from interstellar gas clouds, shine by nuclear fusion and then die
How stars age and die?
stars are born from interstellar gas clouds, shine by nuclear fusion and then die
Were is a star born?
stars are born in nebulae, essentially huge clouds of mostly ionized hydrogen that form at the end of a stars life. Larger stars will eventually explode and heat up and ionize everything near them, then all gases and material left eventually gravitate together and form a new star(and often a solar system).
How are stars and galexys born?
born within the clouds of dust and scattered throughout most galaxies.
Where are all-stars born?
From vast clouds of dust and gas called nebulae.
How was the stars born?
Stars are born when clouds of gas collapse due to gravity. If there is enough mass, the force of gravity will cause hydrogen atoms to fuse into helium atoms. In the process, energy is released in the form of radio waves, infrared, visible light (sunlight), ultraviolet light, x rays and gamma rays.
Is a star born when helium and oxygen combine?
No. A star is born when hydrogen stars fusing.
