prorostars don't ALWAYS become stars
Glowing cloud sections that will eventually become stars are protostars. These protostars are clouds of interstellar gas and dust, which gradually collapse causing a hot dense core to form and evolve into a star.
1.Nebula ( plural for nebulae) are the birth place of stars. 2. If a critical temperature in the core of a protostar is not reached, it ends up a brown dwarf. 3. Stars begin their lives inside molecular clouds.
The difference is in mass. Low to medium mass stars (up to about 8-10 solar masses) become white dwarfs. Massive stars (10 to 25 solar masses) become neutron stars. Stars above 25 solar masses tend to become black holes.
There are three types of stellar remnants. Low to medium mass stars will become white dwarfs. High mass stars will become neutron stars. Very high mass stars will become black holes.
Shooting stars are not stars. They are bits of dirt and dust that burn up in our atmosphere, briefly making them look like stars. Most of that is debris is from comets or others bits of dirt in space, but they are not stars and were not stars. So stars do not become shooting stars.
All stars are formed from protostars.
On the contrary, "protostar" is the name of an early stage in the development of a star.
Protostars
Protostars are the beggining of stars
Clouds of gas will collapse, under certain circumstances, due to their own gravity. These will eventually become stars. This process is described in more detail in the Wikipedia article on "Protostars".
Glowing cloud sections that will eventually become stars are protostars. These protostars are clouds of interstellar gas and dust, which gradually collapse causing a hot dense core to form and evolve into a star.
Clouds of gas and dust, called nebulas and then form into protostars.
Other stars did the stars. This is true in tabloids as well as in astronomy. The birth of stars is usually preceded by the death of nearby stars. Stars going nova cause compression waves in the interstellar medium, causing pockets of gas to reach critical density. These pockets then collapse in on themselves creating protostars. Protostars contract until they reach critical density, and hydrogen in their cores start to fuse. A star is born.
Protostars was created in 1971.
Protostars has 271 pages.
1.Nebula ( plural for nebulae) are the birth place of stars. 2. If a critical temperature in the core of a protostar is not reached, it ends up a brown dwarf. 3. Stars begin their lives inside molecular clouds.
The ISBN of Protostars is 0-345-02393-5.