Difference between revisions of "Main sequence star"
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| − | ''' | + | The '''main sequence''' is the stable phase of a star's lifetime, when outward pressure from internal fusion process using hydrogen for fuel is balanced by the inward force of self-gravitation.<ref>{{Cite web|url=https://www.britannica.com/science/star-astronomy/Star-formation-and-evolution|title=Star Formation And Evolution|accessdate=2019-03-31}}</ref> In the evolutionary picture of [[stellar Evolution|stellar evolution]], this phase is usually the longest phase of a star's lifetime, lasting anywhere from 20 million years to 100 billion.<ref>{{cite web|url=https://www.space.com/22437-main-sequence-stars.html|title=Main Sequence Stars: Definition & Life Cycle|accessdate=2019-03-31}}</ref> While [[creation scientists]] agree such stars have a stable light output and are generally stable, they dispute the time periods over which evolutionary scientists claim it lasts as well as it being a part of stellar evolution as unobservable and so not falsifiable.<ref>{{cite web|url=https://answersingenesis.org/kids/science/do-stars-evolve/|title=DO STARS EVOLVE?|accessdate=2019-03-31}}</ref><ref>{{cite web|url=https://answersingenesis.org/astronomy/stars/stellar-evolution-and-millions-of-years/|title=Stellar Evolution and Millions of Years|accessdate=2019-03-31}}</ref> |
Our [[Sun]] is a main sequence [[star]]. | Our [[Sun]] is a main sequence [[star]]. | ||
| + | |||
| + | ==References== | ||
| + | {{Reflist}} | ||
{{Stars}} | {{Stars}} | ||
[[Category:Astronomy]] | [[Category:Astronomy]] | ||
| + | [[Category:Stars]] | ||
Latest revision as of 16:07, March 31, 2019
The main sequence is the stable phase of a star's lifetime, when outward pressure from internal fusion process using hydrogen for fuel is balanced by the inward force of self-gravitation.[1] In the evolutionary picture of stellar evolution, this phase is usually the longest phase of a star's lifetime, lasting anywhere from 20 million years to 100 billion.[2] While creation scientists agree such stars have a stable light output and are generally stable, they dispute the time periods over which evolutionary scientists claim it lasts as well as it being a part of stellar evolution as unobservable and so not falsifiable.[3][4]
Our Sun is a main sequence star.
References
- ↑ Star Formation And Evolution. Retrieved on 2019-03-31.
- ↑ Main Sequence Stars: Definition & Life Cycle. Retrieved on 2019-03-31.
- ↑ DO STARS EVOLVE?. Retrieved on 2019-03-31.
- ↑ Stellar Evolution and Millions of Years. Retrieved on 2019-03-31.