Ads
related to: life cycle of stars printable worksheets for kids 1st grade books for girlsteacherspayteachers.com has been visited by 100K+ users in the past month
- Worksheets
All the printables you need for
math, ELA, science, and much more.
- Assessment
Creative ways to see what students
know & help them with new concepts.
- Packets
Perfect for independent work!
Browse our fun activity packs.
- Free Resources
Download printables for any topic
at no cost to you. See what's free!
- Worksheets
Search results
Results from the WOW.Com Content Network
Representative lifetimes of stars as a function of their masses The change in size with time of a Sun-like star Artist's depiction of the life cycle of a Sun-like star, starting as a main-sequence star at lower left then expanding through the subgiant and giant phases, until its outer envelope is expelled to form a planetary nebula at upper right Chart of stellar evolution A mass-radius plot ...
In massive stars (greater than about 1.5 M ☉), the core temperature is above about 1.8×10 7 K, so hydrogen-to-helium fusion occurs primarily via the CNO cycle. In the CNO cycle, the energy generation rate scales as the temperature to the 15th power, whereas the rate scales as the temperature to the 4th power in the proton-proton chains. [ 2 ]
Main page; Contents; Current events; Random article; About Wikipedia; Contact us; Donate
Even though extremely long lived, those stars will eventually run out of fuel. Once all the available hydrogen has been fused stellar nucleosynthesis stops, and the remaining helium slowly cools by radiation. Gravity contracts the star until electron degeneracy pressure compensates and it goes off the main sequence, i.e. becomes a white dwarf. [2]
In the field of stellar evolution, a blue loop is a stage in the life of an evolved star where it changes from a cool star to a hotter one before cooling again. The name derives from the shape of the evolutionary track on a Hertzsprung–Russell diagram which forms a loop towards the blue (i.e. hotter) side of the diagram, to a place called the ...
Upgrade to a faster, more secure version of a supported browser. It's free and it only takes a few moments:
The third dredge-up occurs after a star enters the asymptotic giant branch, after a flash occurs in a helium-burning shell. The third dredge-up brings helium, carbon, and the s-process products to the surface, increasing the abundance of carbon relative to oxygen; in some larger stars this is the process that turns the star into a carbon star. [3]
Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!
Ads
related to: life cycle of stars printable worksheets for kids 1st grade books for girlsteacherspayteachers.com has been visited by 100K+ users in the past month