Oldest astronomical society
- Who
- Unknown
- What
- 196, 9, 19 year(s):day(s)
- Where
- United Kingdom (Burlington House,Piccadilly,London)
- When
- 12 January 1820
The Royal Astronomical Society (UK) was founded on 12 January 1820 when 14 gentlemen met in the Freemasons Tavern, London and agreed to found the Astronomical Society of London. It received its royal charter from King William IV on 7 March 1831. It is based in Burlington House, Piccadilly, London.