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:
“The day in his hotness,
The strife with the palm;
The night in her silence,
The stars in their calm . . .”
—Matthew Arnold (1822–1888)
“The stars are pears
that no one can reach,
even for a wedding.
Perhaps for a death.”
—Anne Sexton (1928–1974)
“And is it true? And is it true,
This most tremendous tale of all,
Seen in a stained-glass window’s hue,
A Baby in an ox’s stall?
The Maker of the stars and sea
Become a Child on earth for me?”
—Sir John Betjeman (1906–1984)