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Life Cycle of a Star - Brown Dwarf
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Transcript
Life Cycle of a Star...
Brown Dwarf
What is it?
A brown dwarf is a 'Failed Star' with a mass too small for it to be a star but too large to be a planet and they don't give off much light.
- Brown Dwarf stars are formed just like planets
- Made from only gas and dust
- They don't have any other forms or life cycle
- There are only different versions of the Brown Dwarf as it gets hotter
Brown Dwarfs live for about 1,000,000 years.
Temperature is the main factor for how long a Brown Dwarf lives.
Why Temperature?
- When a Brown Dwarf gets smaller, it gets cooler
- As it gets cooler a Brown Dwarf will collect gas and dust
- After collecting gas and dust the Brown Dwarf will condense to form a planet
- Starts as a nebula, turns into a red giant, then a brown dwarf and ends as a black dwarf
- Changes when its properties (temperature, size, color, mass, and the chemicals it burns) change
- Its size and temperature has dropped before it turns into a brown dwarf
- When it is a brown dwarf, it ages, becomes smaller and cooler, and compacts particles around it
- starchild.gsfc.nasa.gov/docs/starchild/questions/questions62.html
- www.thinkquest.org
- www.coolcosmos.ipac.caltech.edu
- www.chandra.harvard.edu
By-AMANDA OHLER AND JENNA VANCE
Star
Brown Dwarf
The Life Cycle of a Brown Dwarf
Jupiter
Brown Dwarf
Average Star
Resources:
Brown Dwarf Forming
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