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49 inventions and discoveries

Invention or discovery	Date	Inventor or discoverer
NGC 2939	January 18, 1784	William Herschel
NGC 3914	April 13, 1784	William Herschel
NGC 735	September 13, 1784	William Herschel
NGC 3902	April 6, 1785	William Herschel
NGC 3832	April 10, 1785	William Herschel
NGC 3911	April 10, 1785	William Herschel
NGC 3712	April 11, 1785	William Herschel
NGC 4017	April 11, 1785	William Herschel
NGC 3434	January 27, 1786	William Herschel
NGC 828	October 18, 1786	William Herschel
NGC 3053	January 14, 1787	William Herschel
NGC 2755	March 18, 1787	William Herschel
NGC 3374	February 3, 1788	William Herschel
NGC 2326	February 9, 1788	William Herschel
NGC 4675	April 14, 1789	William Herschel
NGC 4290	April 17, 1789	William Herschel
NGC 3668	March 20, 1790	William Herschel
NGC 3408	April 8, 1793	William Herschel
NGC 3935	April 29, 1827	John Frederick William Herschel
NGC 4113	April 29, 1827	John Frederick William Herschel
NGC 4334	April 24, 1830	John Frederick William Herschel
NGC 2895	February 9, 1831	John Frederick William Herschel
NGC 2823	March 13, 1850	William Parsons, 3rd Earl of Rosse
NGC 3016	March 21, 1854	William Parsons, 3rd Earl of Rosse
NGC 3827	December 29, 1861	Heinrich Louis d'Arrest
NGC 2738	February 23, 1863	Heinrich Louis d'Arrest
NGC 2773	March 6, 1864	Albert Marth
NGC 2711	March 28, 1864	Albert Marth
NGC 2730	March 28, 1864	Albert Marth
NGC 2596	January 26, 1865	Albert Marth
NGC 2790	February 17, 1865	Albert Marth
NGC 3326	March 22, 1865	Albert Marth
NGC 3438	March 25, 1865	Albert Marth
NGC 2611	March 29, 1865	Albert Marth
NGC 2761	March 29, 1865	Albert Marth
NGC 3349-2	April 3, 1865	Albert Marth
NGC 829	September 23, 1865	Heinrich Louis d'Arrest
NGC 3719	March 15, 1866	Heinrich Louis d'Arrest
NGC 4247	February 25, 1868	George Mary Searle
NGC 2528	January 22, 1877	Édouard Stephan
NGC 2450	February 26, 1878	Édouard Stephan
NGC 914	November 30, 1878	Édouard Stephan
NGC 3154	March 12, 1880	Édouard Stephan
NGC 3441	April 6, 1882	Edward S. Holden
NGC 3839	April 19, 1882	Édouard Stephan
NGC 3515	April 20, 1882	Édouard Stephan
NGC 3542	March 26, 1884	Édouard Stephan
NGC 3487	March 5, 1886	Lewis A. Swift
NGC 2344	November 24, 1886	Lewis A. Swift