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A Main Sequence star.
a star explodes or becomes a white dwarf, then the matter of that star becomes other things.
Nebulae (gas and dust) protostar (formed by immense pressure in nebulae) ^ becomes either a Brown dwarf (basicall dead :P) or a Main sequence star which becomes: A Red giant (when MSS runs out f hydrogen ) if red giant is small it becomes a white dwarf and does nothing or a planetary nebulae if it's a big one it either becomes a Neutron star or a Black hole
after a nova star becomes bright it turns into a dwarf and explodes.
Depending on the size of the star: a neutron star or a black hole-
A Main Sequence star.
A Main Sequence star.
its original mass when it formed
A Neutron Star
The line means: before it becomes fully daylight.
A neutron star.
a black hole
Once a star explodes, it's no longer a star. The explosion itself is referred to as a "Super Nova."
A star is created once enough dust/gas gather up (called nebulae) and the gravity from a nearby star or shockwave from a nearby supernova causes it to contract. Once a star dies, it blows and becomes a nebulae again, recreating the entire process over and over again to repeat until the end of time. (unless the star becomes a black hole.)
The elements in your body were once part of a star - billions and billions of years ago! Earth and everything on it was formed in space from bits and pieces of "star stuff."
The actual FIRST STAR is impossible to say when it existed. In the normal evolution of a star it becomes a protostar first. The life of a protostar is about 150,000 years before it becomes a main sequence star. But in the Early universe it is hard to say what was happening. They could have formed in days weeks months or even hours.
Once a high mass star goes supernova, it doesn't become any other type of star - it becomes a pile of enormously dense stellar ash, or if it was big enough to begin with, it becomes a black hole.