Astronomical year numbering
id:
astronomical-year-numbering-191-1986021
title:
Astronomical year numbering
text:
Astronomical year numbering is based on AD/CE year numbering, but follows normal decimal integer numbering more strictly. Thus, it has a year 0; the years before that are designated with negative numbers and the years after that are designated with positive numbers. Astronomers use the Julian calendar for years before 1582, including the year 0, and the Gregorian calendar for years after 1582, as exemplified by Jacques Cassini (1740), Simon Newcomb (1898) and Fred Espenak (2007). The prefix AD a
brand slug:
wiki
category slug:
encyclopedia
description:
Year numbering system using 0 for 1 BC
original url:
https://en.wikipedia.org/wiki/Astronomical_year_numbering
date created:
date modified:
2024-03-15T16:15:04Z
main entity:
{"identifier":"Q751976","url":"https://www.wikidata.org/entity/Q751976"}
image:
fields total:
13
integrity:
14