250th anniversary: French astronomer Charles Messier discovered the Whirlpool Galaxy (pictured),...
History · Anniversaries · Fri, October 13, 2023
1773: French astronomer Charles Messier discovered the Whirlpool Galaxy (pictured), an interacting, grand design spiral galaxy located an estimated 31 million light-years away.
Source, method and history
- Source
- Wikipedia
- How we know
- Wikipedia "On this day" selected anniversary, 250 years (1773 to 2023).
- Recurs
- annual
- Feed
- Subscribe to Anniversaries
- Changes
- None recorded.
Sources: official schedules and published calendars, linked on every event; computed dates name their rule. Refreshed nightly.