+0  
 
0
215
0
avatar

Assuming The luminosity of the average galaxy is 1010 times larger than the Sun. Assume the Sun represents the average star with 1 solar luminosity and 1 solar mass. The Hubble Telescope tells us there are ~100 billion galaxies in the observable universe.

1) Estimate the number of stars in an average galaxy

2) Estimate the number of stars in the observable universe using the information in the previous question

 
physics
Guest Mar 25, 2015
Sort: 

0+0 Answers


7 Online Users

We use cookies to personalise content and ads, to provide social media features and to analyse our traffic. We also share information about your use of our site with our social media, advertising and analytics partners.  See details