University:
Bradley University
Course:
AST 300 | Astronomy: Our Glimpse of the Cosmos
Academic year:

2024
Views:

424

Pages:

2
Author:

Marilyn James

Life Cycle of a Star / Worksheet 7CG0BL https://quizlet.com/_372w88 2 A5B8: 1. Nebula All stars start as a Nebula . Is a large cloud of gas and dust. 2. Protostar Gravity pul some of the gas and dust in a nebula together . The contracting cloud is called protostar 3. When a star is born A star is born when the gas and dust from a nebula become so hot that nuclear fusion stars . 4. Main sequence star Once the star has "turn on" 5. When a main se- the star becomes a RED GIANT or a RED SUPER GIANT quence star begins to run out of hydrogen fuel 6. Sequence stages 1) star stars out as diffused clouds of gas and dust (NEBfor a Star' life ULA) 2) The force of gravity pulls a nebula together forming clumps called PROTOSTARS 3) Heat and pressure build in the core of the PROTOSTAR 1/2 Life Cycle of a Star / Worksheet 7CG0BL https://quizlet.com/_372w88 2 A5B8: until nuclear fusion takes place 4) Hydrogen atoms are fused together generating an enormous amount of energy igniting the star causing it to shine 5) The stars begins to run out fuel and expands into RED GIANT or RED SUPER GIANT. 6) What happens next depend on the mass of the star 7. Nebula a large cloud of gas and dust in space 8. protostar the earliest stage of a star's life 9. White dwarf star left at the core of a planetary nebula 10. Supernova a red super giant star explodes 11. neutron star the remains of a high mass star 12. black dwarf what a medium-mass star becomes at the end of its life 13. black hole exerts such strong gravitational pull that no light escapes 14. Graphic Organizer 2/2