Odd I stumbled on to this site obviously from a google search how long does vic w/d last and felt compelled to read every post. I am sitting here at the 24 hour mark and its not dreadful but it is pretty bad.
The best estimate from a 1999 study set that number at about 125 billion galaxies, but a 2013 study - after the Hubble Space Telescope was upgraded considerably - indicated that there are 225 billion galaxies in the observable universe.
Cain starts with the estimate that on average, there are approximately 100 to 400 billion stars in a galaxy. There are estimated to be around 100 billion galaxies in our universe, which a means that a bit of large format Math tells us there are approximately 10 sextillion (10 billion, billion) stars in our universe.