lifecycle of a star
DESCRIPTION
Lifecycle of a Star. /Act One/. The Life of a Small to Medium Mass Star. Nebula - cloud of gas & dust. Protostar. Small Protostar…. Brown Dwarf Too small to create enough heat to start fusion. or. Main Sequence Star. The protostar gains enough mass to begin fusion. - PowerPoint PPT PresentationTRANSCRIPT
![Page 1: Lifecycle of a Star](https://reader035.vdocument.in/reader035/viewer/2022062422/56813df1550346895da7ca8b/html5/thumbnails/1.jpg)
Lifecycle of a Star
![Page 2: Lifecycle of a Star](https://reader035.vdocument.in/reader035/viewer/2022062422/56813df1550346895da7ca8b/html5/thumbnails/2.jpg)
/Act One/
The Life of a Small to Medium Mass Star
![Page 3: Lifecycle of a Star](https://reader035.vdocument.in/reader035/viewer/2022062422/56813df1550346895da7ca8b/html5/thumbnails/3.jpg)
Nebula- cloud of gas & dust
![Page 4: Lifecycle of a Star](https://reader035.vdocument.in/reader035/viewer/2022062422/56813df1550346895da7ca8b/html5/thumbnails/4.jpg)
Protostar
![Page 5: Lifecycle of a Star](https://reader035.vdocument.in/reader035/viewer/2022062422/56813df1550346895da7ca8b/html5/thumbnails/5.jpg)
Small Protostar…
Brown DwarfToo small to create enough heat to start fusion
![Page 6: Lifecycle of a Star](https://reader035.vdocument.in/reader035/viewer/2022062422/56813df1550346895da7ca8b/html5/thumbnails/6.jpg)
![Page 7: Lifecycle of a Star](https://reader035.vdocument.in/reader035/viewer/2022062422/56813df1550346895da7ca8b/html5/thumbnails/7.jpg)
Main Sequence Star
The protostar gains enough mass to begin fusion.All main sequence stars fuse hydrogen
![Page 8: Lifecycle of a Star](https://reader035.vdocument.in/reader035/viewer/2022062422/56813df1550346895da7ca8b/html5/thumbnails/8.jpg)
Red Giant
Small to medium main sequence star runs out of hydrogen & begins fusing helium
![Page 9: Lifecycle of a Star](https://reader035.vdocument.in/reader035/viewer/2022062422/56813df1550346895da7ca8b/html5/thumbnails/9.jpg)
Planetary Nebula
A Red Giant completely stops fusing & the outer layers of the star are driven away
![Page 10: Lifecycle of a Star](https://reader035.vdocument.in/reader035/viewer/2022062422/56813df1550346895da7ca8b/html5/thumbnails/10.jpg)
White Dwarf
The left over core of a star.
A white dwarf may only be the size of Earth, but it has a mass equal to ½ of the Sun.
![Page 11: Lifecycle of a Star](https://reader035.vdocument.in/reader035/viewer/2022062422/56813df1550346895da7ca8b/html5/thumbnails/11.jpg)
Black Dwarf
A white dwarf cools off over trillions of yearsuntil it no longer emits light
![Page 12: Lifecycle of a Star](https://reader035.vdocument.in/reader035/viewer/2022062422/56813df1550346895da7ca8b/html5/thumbnails/12.jpg)
![Page 13: Lifecycle of a Star](https://reader035.vdocument.in/reader035/viewer/2022062422/56813df1550346895da7ca8b/html5/thumbnails/13.jpg)
/Act Two/
The Life of aHigh Mass Star
![Page 14: Lifecycle of a Star](https://reader035.vdocument.in/reader035/viewer/2022062422/56813df1550346895da7ca8b/html5/thumbnails/14.jpg)
Nebula- cloud of gas & dust
![Page 15: Lifecycle of a Star](https://reader035.vdocument.in/reader035/viewer/2022062422/56813df1550346895da7ca8b/html5/thumbnails/15.jpg)
Protostar
![Page 16: Lifecycle of a Star](https://reader035.vdocument.in/reader035/viewer/2022062422/56813df1550346895da7ca8b/html5/thumbnails/16.jpg)
Massive Main Sequence Star
Massive main sequence stars fuse hydrogenmuch faster than small or medium stars
![Page 17: Lifecycle of a Star](https://reader035.vdocument.in/reader035/viewer/2022062422/56813df1550346895da7ca8b/html5/thumbnails/17.jpg)
Red Supergiant
Massive main sequence star runs out of hydrogen & beginsfusing helium, carbon, oxygen, etc.
![Page 18: Lifecycle of a Star](https://reader035.vdocument.in/reader035/viewer/2022062422/56813df1550346895da7ca8b/html5/thumbnails/18.jpg)
![Page 19: Lifecycle of a Star](https://reader035.vdocument.in/reader035/viewer/2022062422/56813df1550346895da7ca8b/html5/thumbnails/19.jpg)
Supernova
Fusion stops. The star collapses & creates a huge explosion.
![Page 20: Lifecycle of a Star](https://reader035.vdocument.in/reader035/viewer/2022062422/56813df1550346895da7ca8b/html5/thumbnails/20.jpg)
Neutron Star
Super dense core of a star left over after a supernova.
Only 5 to 15 MILES in diameter, but have a mass 1.5 – 2 timesthat of the Sun.
![Page 21: Lifecycle of a Star](https://reader035.vdocument.in/reader035/viewer/2022062422/56813df1550346895da7ca8b/html5/thumbnails/21.jpg)
![Page 22: Lifecycle of a Star](https://reader035.vdocument.in/reader035/viewer/2022062422/56813df1550346895da7ca8b/html5/thumbnails/22.jpg)
Black Hole
Stars with masses of 25 to 50 times of the Sunform black holes after a supernova.
The leftover core of the star is so dense that it causes gravitational collapse.
![Page 23: Lifecycle of a Star](https://reader035.vdocument.in/reader035/viewer/2022062422/56813df1550346895da7ca8b/html5/thumbnails/23.jpg)