The lifetime of a star depends on its?

Answer 1

The life of a star depends on the amount of hydrogen a star has left.

Simple answer the larger the star the shorter the life span for example: stars like our Sun can be expected to live 8-12 billion years a more massive star like Beetlegeuse can expect to live 100-400 million years and the most massive stars like S. Doradus and VY Canis Majoris can expect to live just a few million years. The larger the star the more fuel it consumes. Due to contrary belief not all stars burn hydrogen some stars burn helium others burn carbon some even burn oxygen this is all based off the core temperature the hotter the core the more elements it can burn

Answer 2

Its mass. The more massive a star is, the more quickly it will burn its fuel (hydrogen) due to larger core pressures. Stars with a smaller mass will burn its fuel slowly over much longer periods, such as the cooler red dwarf stars that can go on for billions of years.

Answer 3

The life span of a star depends primarily on its mass. This affects the life span in two possible ways. First, the amount of fuel the star has to burn obviously is proportional to its mass. Second, the mass affects the density and temperature at the center of the star which affect the types of reactions which occur and their rates.

However, other factors can come into play. For instance, if the star is orbiting another star, that star can pull matter away from it and shorten its life. Also, when the more massive star goes nova or super nova, it will impact the orbiting star.

Answer 4

The lifetime of a star depends on its MASS (not to be confused with size or weight since mass is a physical, consistent property). =-)

Answer 5

mass.