Diagram Step By Step Star Life Cycle

Life cycle of a star step by step explained 1.

Diagram step by step star life cycle. Nuclear reactions at the centre or core of stars provides enough energy to make them shine brightly for many years. Towards the end of a stars life the temperature near the core rises and this causes the size of the star to expand. A star in the upper right corner of the diagram would be cool and bright. Then discuss that a star also goes through a life cycle.

The sun rests approximately in the middle of the diagram and it is the star which we use for comparison. Life cycle of a star stars are formed in clouds of gas and dust known as nebulae. The outer layers begin to expand cool and shine less brightly. Also the temperature inside the cloud is low enough that a molecule can form in it.

When this occurs the star will expand to become a red giant. The amount of mass a star has determines which of the following life cycle paths it will take from there. The main sequence phase of a stars life cycle is that time during which hydrogen fusion takes place in its core. 3 to begin activity cut six to eight inches of yarn and tie it to the end of the stellar life cycle bookmark.

Conversation by using a guided approach. The life cycle of a low mass star left oval and a high mass star right oval. Artists depiction of the life cycle of a sun like star starting as a main sequence star at lower left then expanding through the subgiant and giant phases until its outer envelope is expelled to form a planetary nebula at upper right. The illustration above compares the different evolutionary paths low mass stars like our sun and high mass stars take after the red giant phase.

Stellar evolution is the process by which a star changes over the course of time. They maintain a predictable relationship between luminosity and temperature. A star in the lower left corner of the diagram would be hot and dim. 2 discuss that a stars life cycle depends on its mass.

The core is hot enough for the helium to fuse to form carbon. Chart of stellar evolution. When this occurs the star will expand to become a red giant. A star in the upper left corner of the diagram would be hot and bright.

If the star collapses into itself and the mass is to small to blow up it will stay crunched together as a white or red dwarf star. It would stay there use up the last of its fuel go cold and wait to be swallowed up by a larger gravity field. The expanding star is now called a red giant. The life cycle of a star begins as a large gas cloud.

However all stars roughly follow the same basic seven stage life cycle starting as a gas cloud and ending as a star remnant. At this point in the life cycle of a star the excess helium causes the stars temperature to increase.