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Old August 18th 06, 11:34 PM posted to sci.astro.amateur,sci.astro,alt.astronomy,alt.astronomy.solar,uk.sci.astronomy
Sam Wormley
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Default When the sun becomes a white dwarf why will it take SO long tocool off?

Radium wrote:
Hi:

I've read about the sun's life cycle. Apparently, when the sun becomes
a white dwarf, it will take at least a trillion years to completely
cool off. Why such a long time?


Small surface area.



It seems that the sun would exist much longer dead [i.e. as a white
dwarf] than alive [burning hydrogen and helium].


It will exist far longer as a cold degenerate body.