- #1

KingGambit

- 37

- 27

- 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

And after that, it seems that I can't find a reference to the size of the universe.

For example in

The mass of the

I am wondering if someone can help me with the size of the universe at

- Quark epoch (10

- 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.