period articles
What single factor fundamentally dictates the duration of a star’s stellar period?
What condition signifies a protostar's official birth and entry onto the Main Sequence?
Approximately what percentage of a star's total lifespan does the Main Sequence phase represent?
What is the final theoretical remnant of a star less massive than 0.5 solar masses after cooling?
In a Sun-like star, what temperature (approximately) is required to ignite helium fusion in the core?
What element's formation causes fusion to stop abruptly in high-mass stars because fusing it consumes energy?
What catastrophic explosion marks the end of life for stars with initial masses greater than about eight times the Sun's mass?
If a core remnant following a supernova is between 1.4 and 3 times the mass of the Sun, what object forms?
What is the collective term for the vast, cold reservoirs of gas and dust where stars begin their lives?
What celestial role defines stars regarding the creation of heavier elements in the universe?
What process defines the longest phase of a star's evolution on the main sequence?
What percentage of the Sun's entire lifespan is spent on the main sequence?
Approximately what core temperature must be reached for a star to officially join the main sequence via nuclear fusion?
What dynamic stalemate maintains a star on the main sequence?
What are the two types of outward pressure generated by core fusion?
What is the technical term for the state where outward pressure exactly matches inward gravitational pressure?
In stars similar to or smaller than the Sun, which component of outward pressure is usually dominant?
What factor is the single most important determinant of a star's position on the main sequence and how long it stays there?
How does increased mass affect a star's required energy expenditure to maintain equilibrium?
What signals the transition out of the main sequence phase for a star?