How many stars are in univarse?

Answer 1

Photosurveys seem to suggest that we can see maybe 100 billion galaxies,

and a reasonable average estimate may be something like 100 billion stars

in each galaxy.

That puts you at 10 thousand million million million stars right there.

But there doesn't seem to be any end to the universe as far as we can see

up till now, so we don't know how many more galaxies there might be, out

past the ones that we can see.