Total number of stars
3 X 1023 are the possible number of stars in the universe ! ( a number equivalent to the total number of human cells, as mentioned by Conroy) (source, based on Pieter G. van Dokkum & Charlie Conroy, 2010, Nature, 468,940–942)
Tag: star
A great image of star sizes
A magnificent picture comparing star sizes !!! (from Wikipedia / Star – Diameter)