All Questions
Tagged with white-dwarf red-giant
5 questions
7
votes
1
answer
155
views
Where will all atoms on the Earth end up when the Sun engulfs the earth?
I am curious about what will happen to all atoms on the Earth including all of our atoms after the Sun engulfs the Earth?
Will they become the part of the Sun's white dwarf?
Or most of them will be ...
- 71
7
votes
1
answer
200
views
Exactly how long does it take for the exposed core of a star to cool from its starting temperature (several billion K) to ~50,000 K?
OK, I didn't know how I should word this question. But the basic point is that most white dwarfs that we have classified fall in temperature ranges from ~50,000 K to 6000 K. However, at the end of a ...
- 6,733
11
votes
1
answer
2k
views
If Sunlike stars become a red giant and eventually a white dwarf, what do red dwarfs become?
The Sun is said to become a red giant at the end of its life (before that it will become an orange subgiant first and then an orange giant or so) and after ejecting its outer layers it should become a ...
- 227
4
votes
2
answers
404
views
Origin of terms "white dwarfs" and "red giants"?
Can someone explain my why "white dwarfs" and "red giants" were so named? And maybe that's a silly question but why not in the opposite way?
@EDIT
Is this somehow co-related with Stefan–Boltzmann law?...
- 143
6
votes
2
answers
232
views
How can white dwarf form Oxygen ? (Temperature problem)
I’ve got a question about white dwarfs and oxygen.
I read in a book that a temperature of 100 million degrees is required to fuse Helium in the core of a red giant. The Helium fuses into Carbon by ...
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