Stars
The internal heating within stars are so great that they sustain thermonuclear reaction of hydrogen to helium and can make heavier elements. The Sun for example has a core temperature of 13,600,000 K. The bluer, more massive, hotter, and older the stars are, the more internal heating it has. During the end of its lifecycle, the internal heating of a star increases dramatically, caused by contracting core, eventually becoming hot enough to fuse helium then carbon or oxygen.
Read more about this topic: Internal Heating
Famous quotes containing the word stars:
“Let the stars of its dawn be dark; let it hope for light, but have none; may it not see the eyelids of the morning—”
—Bible: Hebrew, Job 3:9.
“The stars are putting on their glittering belts.
They throw around their shoulders cloaks that flash
Like a great shadow’s last embellishment.”
—Wallace Stevens (1879–1955)
“The sorrow of not being movie stars overwhelms millions.”
—Mason Cooley (b. 1927)