Main+Sequence+Stars+1A

Main sequence stars are stable as they live out the mature period of their lives. Stars are grouped by temperatures. Going from hottest to coolest, the groups are called O, B, A, F, G, K, and M. Main sequence stars are like a regular human beings life your born just like a star is born, and there both pretty messy. You go through your life young and full of energy just like a star. Then you grow old just like a star, for the star and some people they both become full of less energy and become colder. Then they die just like anything else in the world.

About nine out of every ten stars are on the main sequence.

Main sequence star considers the various physical processes acting in the interior of the star.

Main sequence stars is considered by various physical properties acting on the inside.

Hydrostatic balance determines the density structure of the star



Second physical process is the movement of the energy from the inside of the stars structure to the edge of the stars structure

Earth gets heat from the sun and the efficency of the heat to the Earth depends on the opacity of the material the radiation will eventually traverse.

Opacity - the degree to which a substance is opaque; capacity for being opaque.

Main Sequence Stars have zones

The main sequence stars are the curved line of stars in the HR Diagram

Once a star goes through a T-Tauri stage it will become a main sequence star. But this process will take a few million years Main sequence stars falls into a category on the H-R diagram ( Hertzsprung- Russell Diagram). This category contains a majority of stars and runs diagonally from the upper left to the lower right on the H-R diagram. Hertzsprung – Russell diagram shows the relationship between the absolute magnitude and temperature star. On the charts you will see, the hottest main sequence stars are on the brightest and the coolest main sequence are the dimmest. The hottest stars are about 50 times more massive than the sun, as for the coolest star are only 1/10 as massive. Hertzsprung- Russell diagram appears he a line the main sequence in a decreasing order, from hotter to more massive blue stars to cooler then less massive red stars.

Stars live out the majority of the life cycle being a main sequence star up in space

Main Sequence stars live out their lives in a few billion years as the heat and light energy is being lost

The stars temperature, pressure, and density at the core of the star all continues to increase

Smaller stars live longer because they contain less fuel so in return it wil burn at a lot lower of a rate then a big star