Lifecycle Of A Star Diagram

Depending on the mass of the star its lifetime can range from a few million years for the most massive to trillions of years for the least massive which is considerably longer than the age of the universethe table shows the lifetimes of stars as a function of their masses. Life cycle of a star stars are formed in clouds of gas and dust known as nebulae.

Stellar Evolution Wikipedia

Life cycles of stars.

Lifecycle of a star diagram. Produces heat and light. Like low mass stars high mass stars are born in nebulae and evolve and live in the main sequence. Stars expand as they grow old.

Cloud of gas and dust. This is a red giant or a red super giant depending on the initial mass of the star. As the core runs out of hydrogen and then helium the core contacts and the outer layers expand cool and become less bright.

Start studying life cycle of a star. Where stars are born. Learn vocabulary terms and more with flashcards games and other study tools.

Nuclear reactions at the centre or core of stars provides enough energy to make them shine brightly for many years. Use this astronomy worksheet to learn about the stages in the life cycle of a star. Process where smaller nuclei such as hydrogen fuse to form larger nuclei such as helium.

The sun has a surface temperature of 5500 degrees celcius its colour appears yellow. The temperature increases from right to left backward from most charts you may be used to using. The x axis of the h r diagram indicates the stars surface temperature in degrees kelvin.

The colour of a star is determined by its temperature the hottest stars are blue and the coolest stars are red. The h r diagram uses a ratio scale. However their life cycles start to differ after the red giant phase.

Stars give off large amounts of energy in the form of electromagnetic radiation. Students will complete a diagram to help them visualize the life and death of a star. Life cycle of star.

Bell ringer notes star life cycle h r diagram binders due tomorrow what is a star. On the right of the illustration is the life cycle of a massive star 10 times or more the size of our sun. The energy produced by the star is by nuclear fusion in the stars core.

Each evenly spaced mark represents a temperature twice that of its neighbor to the right. Stellar evolution is the process by which a star changes over the course of time. A star is ball of plasma undergoing nuclear fusion.

The brightness is measured in magnitude. Explosive death of a star.

Stellar Evolution Wikipedia