 #1
KingGambit
 18
 8
 TL;DR Summary

The size of the universe after
Inflationary epoch
Quark epoch
Baryogenesis
Photon epoch
Dear PF Forum,
I've been searching what was the size of the early univese, but I think I might have hit the wall.
I read that in the end of inflationary epoch, 10^{32} seconds, the size of the universe was as big as a grape fruit?
And after that, it seems that I can't find a reference to the size of the universe.
For example in Baryogenesis epoch, 10^{11} seconds, if all atoms were created at that point, then what was the size of the universe then?
The mass of the Observable Universe is about... 10^{23} solar mass. And we know that an average neutron star (1.5 solar mass) size is 20 km in diameter. I know this is wrong if I am to extrapolate that number, the size of the universe at around Baryogenesis would be... 10^{7} solar diameter or about 1 light year? I know this is completely wrong.
I am wondering if someone can help me with the size of the universe at
 Quark epoch (10^{5} seconds)
 Photon epoch (380,000 years)
Thank you very much.
I have read this:
https://en.wikipedia.org/wiki/Chronology_of_the_universe
But I found no information about the size of the universe.
I've been searching what was the size of the early univese, but I think I might have hit the wall.
I read that in the end of inflationary epoch, 10^{32} seconds, the size of the universe was as big as a grape fruit?
And after that, it seems that I can't find a reference to the size of the universe.
For example in Baryogenesis epoch, 10^{11} seconds, if all atoms were created at that point, then what was the size of the universe then?
The mass of the Observable Universe is about... 10^{23} solar mass. And we know that an average neutron star (1.5 solar mass) size is 20 km in diameter. I know this is wrong if I am to extrapolate that number, the size of the universe at around Baryogenesis would be... 10^{7} solar diameter or about 1 light year? I know this is completely wrong.
I am wondering if someone can help me with the size of the universe at
 Quark epoch (10^{5} seconds)
 Photon epoch (380,000 years)
Thank you very much.
I have read this:
https://en.wikipedia.org/wiki/Chronology_of_the_universe
But I found no information about the size of the universe.