| Literature DB >> 26367847 |
Abstract
A novel photometry-based estimation of the total number of stars in the Universe is presented. The estimation method is based on the energy conservation law and actual measurements of the extragalactic background light levels. By assuming that every radiated photon is kept within the Universe volume, i.e., by approximating the Universe as an integrating cavity without losses, the total number of stars in the Universe of about 6×10<sup>22</sup> has been obtained.Year: 2015 PMID： 26367847 DOI： 10.1364/AO.54.006589
Source DB: PubMed Journal: Appl Opt ISSN： 1559-128X Impact factor: 1.980