The "protostar". That's not classed as a true star, but I think that's the answer.
stellar nebula
What is capella star life cycle
The "star life cycle" refers to stars. Earth is not a star.
Formation of the star out of a giant cloud of gas and dust.
No, a protostar is basically the BEGINNING of a star's life cycle.
The stage that comes first in the life cycle of a high-mass star is the main sequence stage. During this stage, the star fuses hydrogen into helium in its core, maintaining a balance between radiation pressure and gravity.
How does the life cycle of humans compare to the life cycle of a star? They both have stages where they are born and die which is in the main sequence and supernova and in a human they are born in a womb and die of old age.
Nobody "invented" it, the life cycle of stars happens naturally.
its mass
A dog.
Life cycle of a sun like star. A sun like star will start out as a nebula to a protostar to a main sequence star to a red giant and into a white dwarf and will simply fade out.
The two factors that determine the life cycle path of a star are its mass and composition. A star's mass dictates how it will evolve over time, while its composition affects its energy production and how it will eventually end its life cycle.