4 ms·

Interesting that Sun burning coal age is well under billion years, while white dwarfs - which don't have corresponding reactions supporting the light emission -

by avmich 7y ago

Interesting that Sun burning coal age is well under billion years, while white dwarfs - which don't have corresponding reactions supporting the light emission - can live a trillion years.

saagarjha 7y ago
White dwarfs are quite small, making their heat loss to radiation fairly low.
- Gibbon1 7y ago
  Not to mention insanely dense and hot, so there is a lot of heat reserves.
  - wolfram74 7y ago
    And unless I'm misremembering my stat mech, the heat capacity of fermi gases is pretty high.
- deleted 7y ago
  [deleted]