Where does “zettaparsec” come from?

zettaparsec (English) comes from English parsec, from English parallax second — A unit of length, used in astronomy, defined as...

zettaparsec (English): An astronomical unit of distance equal to 1021 parsecs

Definitions

  1. An astronomical unit of distance equal to 1021 parsecs

Ancestry of “zettaparsec”, step by step

zettaparsec traces back through two separate lines of ancestry.

via English parsec

StepLanguageWordMeaning
1Englishparsecparallax second
2Englishparallax secondA unit of length, used in astronomy, defined as...

via English zetta

StepLanguageWordMeaning
1Englishzetta
Every word from English parallax second