![JEAN SYLVAIN BAILLY French astronomer who computed the orbit for Halley's Comet, and first Mayor of Paris in 1789 Date: 1736 - 1793 Stock Photo - Alamy JEAN SYLVAIN BAILLY French astronomer who computed the orbit for Halley's Comet, and first Mayor of Paris in 1789 Date: 1736 - 1793 Stock Photo - Alamy](https://c8.alamy.com/comp/G39KE3/jean-sylvain-bailly-french-astronomer-who-computed-the-orbit-for-halleys-G39KE3.jpg)
JEAN SYLVAIN BAILLY French astronomer who computed the orbit for Halley's Comet, and first Mayor of Paris in 1789 Date: 1736 - 1793 Stock Photo - Alamy
![Jean-Sylvain Bailly, September 15, 1736 - November 12, 1793, French astronomer and first mayor of Paris. Bailly became famous for calculating the orbit of Halley's comet in 1759 / Jean-Sylvain Bailly, 15. Jean-Sylvain Bailly, September 15, 1736 - November 12, 1793, French astronomer and first mayor of Paris. Bailly became famous for calculating the orbit of Halley's comet in 1759 / Jean-Sylvain Bailly, 15.](https://c8.alamy.com/comp/2F1MEXM/jean-sylvain-bailly-september-15-1736-november-12-1793-french-astronomer-and-first-mayor-of-paris-bailly-became-famous-for-calculating-the-orbit-of-halleys-comet-in-1759-jean-sylvain-bailly-15-september-1736-12-november-1793-franzsischer-astronom-und-erster-brgermeister-von-paris-bailly-wurde-durch-die-berechnung-der-umlaufbahn-des-halleyschen-kometen-im-jahre-1759-bekannt-historisch-historical-digital-improved-reproduction-of-an-original-from-the-19th-century-digitale-reproduktion-einer-originalvorlage-aus-dem-19-jahrhundert-2F1MEXM.jpg)
Jean-Sylvain Bailly, September 15, 1736 - November 12, 1793, French astronomer and first mayor of Paris. Bailly became famous for calculating the orbit of Halley's comet in 1759 / Jean-Sylvain Bailly, 15.
![English: Portrait of Jean-Sylvain Bailly (1736-1793) . circa 1791-1792. 1154 Sylvain-Bailly Stock Photo - Alamy English: Portrait of Jean-Sylvain Bailly (1736-1793) . circa 1791-1792. 1154 Sylvain-Bailly Stock Photo - Alamy](https://c8.alamy.com/comp/MNXHBM/english-portrait-of-jean-sylvain-bailly-1736-1793-circa-1791-1792-1154-sylvain-bailly-MNXHBM.jpg)
English: Portrait of Jean-Sylvain Bailly (1736-1793) . circa 1791-1792. 1154 Sylvain-Bailly Stock Photo - Alamy
![Jean Sylvain Bailly, 1736-1793. French astronomer, mathematician, Stock Photo, Picture And Rights Managed Image. Pic. XY2-2760825 | agefotostock Jean Sylvain Bailly, 1736-1793. French astronomer, mathematician, Stock Photo, Picture And Rights Managed Image. Pic. XY2-2760825 | agefotostock](https://previews.agefotostock.com/previewimage/medibigoff/97288158199db4d3e92b5bbaa729cc5d/xy2-2760825.jpg)