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Well,a proto star is a new star.So whena new star forms the other star is no longer a proto star.

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Q: When does a proto star become a star?
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What temperature does a star start to fuse hydrogen?

The temperature at which hydrogen fuses is 10,000,000 degrees Kelvin. This is the minimum temperature the core of a proto star has to have to become a true star.


Protostar will turn into what kind of star?

That depends on the mass of the proto-star.


What causes the heat to grow in a proto-star?

Compression. Whenever anything is compressed, it heats up. In a proto-star, clouds of hydrogen gas are compressed by gravitational attraction, and the compression heats the gas.


What is the dense center of a stellar nebula after it spins into a disk shape?

A "proto-star".


When proto-oncogenes mutate they may become?

They are called oncogenes.


Matter from a nebula that has begun to condense?

Matter from nebula that condense make proto star.


Who named the protostar and why?

No one. It comes from the Greek - proto - meaning first. So first star - a protostar.


Will there ever be more planets?

In the words of my physics teacher 'Not in your lifetime!' Planets form from a disk of dust and gas when the star is just a proto-star. Planets cannot form after the star has been formed.


A mass of gas in space made hot by nuclear reactions?

A 'proplid', or a proto-stellar object, often called a proto-star, and some believe (as I do) that 'Herbig-Haro Objects', are newly formed stars. At any rate, a star is a mass of gas in space made hot by nuclear reactions.


What is a protoplanetary disk?

A disk of gas ad dust that forms round a proto-star as the star coalesces at the center and from which planets accurate. The related links below give more information.


What is the current theory of the formation of your solar system and explain the theory briefly?

Our Solar System Formed from the remnants of a star wich went supernovae (at least approx 5 billion years ago) the dust from that star started to condense (due to the passing another star or some other mechanism), spinning counter-clockwise, the pressure at the center of this cloud became great enough to start a process know as nuclear fussion (triple alpha process) creating a proto-star, wich was significantly dimmer and smaller than todays Sol. The remaining dust accreted to from proto-planets (maybe upwards of 100), These proto-Planets smashed into each-other and merged to become the inner planets. As for our gas-giants, they formed from cold gas and dust, beyond what is known as the "Frost Line" due to the required colder temperatures to form Gas Planets.


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