Sagan's number

From Wiktionary, the free dictionary
Jump to navigation Jump to search

English

[edit]

Etymology

[edit]

Named in honor of Carl Sagan.

Proper noun

[edit]

Sagan's number

  1. (astronomy) The total number of stars in the observable universe, often estimated to be in the sextillions.
Retrieved from "https://en.wiktionary.org/w/index.php?title=Sagan%27s_number&oldid=77965175"