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The 19th century
1,725 inventions and discoveries
| Invention or discovery | Date | Inventor or discoverer | Type |
|---|---|---|---|
| NGC 1880 | September 24, 1826 | James Dunlop | star cluster |
| NGC 1943 | September 24, 1826 | James Dunlop | star cluster |
| NGC 1969 | September 24, 1826 | James Dunlop | open cluster |
| NGC 1972 | September 24, 1826 | James Dunlop | star cluster |
| NGC 2033 | September 24, 1826 | James Dunlop | stellar association |
| NGC 2048 | September 24, 1826 | James Dunlop | emission nebula |
| NGC 2055 | September 24, 1826 | John Frederick William Herschel | stellar association |
| NGC 2057 | September 24, 1826 | James Dunlop | star cluster |
| NGC 2065 | September 24, 1826 | James Dunlop | star cluster |
| NGC 2086 | September 24, 1826 | James Dunlop | star cluster |
| NGC 2136 | September 24, 1826 | James Dunlop | star cluster |
| NGC 1917 | September 25, 1826 | James Dunlop | open cluster |
| NGC 2118 | September 25, 1826 | James Dunlop | star cluster |
| NGC 1929 | September 27, 1826 | James Dunlop | star cluster |
| NGC 1937 | September 27, 1826 | James Dunlop | stellar association |
| NGC 1986 | September 27, 1826 | James Dunlop | star cluster |
| NGC 2029 | September 27, 1826 | James Dunlop | supernova remnant |
| NGC 2042 | September 27, 1826 | James Dunlop | star cluster |
| NGC 2114 | September 27, 1826 | James Dunlop | open cluster |
| NGC 2116 | September 27, 1826 | James Dunlop | open cluster |
| NGC 2147 | September 27, 1826 | James Dunlop | open cluster |
| NGC 2156 | September 27, 1826 | James Dunlop | globular cluster |
| NGC 2164 | September 27, 1826 | James Dunlop | open cluster |
| NGC 2166 | September 27, 1826 | James Dunlop | open cluster |
| NGC 2214 | September 27, 1826 | James Dunlop | open cluster |
| NGC 1515 | November 5, 1826 | James Dunlop | spiral galaxy |
| NGC 1947 | November 5, 1826 | James Dunlop | lenticular galaxy |
| NGC 1760 | November 6, 1826 | James Dunlop | H II region |
| NGC 1769 | November 6, 1826 | James Dunlop | stellar association |
| NGC 1940 | November 6, 1826 | James Dunlop | star cluster |
| NGC 2027 | November 6, 1826 | James Dunlop | star cluster |
| NGC 2041 | November 6, 1826 | James Dunlop | star cluster |
| NGC 2157 | November 6, 1826 | James Dunlop | star cluster |
| NGC 2159 | November 6, 1826 | James Dunlop | globular cluster |
| NGC 3561B | 1827 | John Frederick William Herschel | galaxy |
| NGC 2291 | January 22, 1827 | John Frederick William Herschel | lenticular galaxy |
| NGC 3098 | February 19, 1827 | John Frederick William Herschel | lenticular galaxy |
| NGC 3209 | February 19, 1827 | John Frederick William Herschel | elliptical galaxy |
| NGC 3997 | February 19, 1827 | John Frederick William Herschel | spiral galaxy |
| NGC 2809 | February 24, 1827 | John Frederick William Herschel | lenticular galaxy |
| NGC 2885 | February 24, 1827 | John Frederick William Herschel | lenticular galaxy |
| NGC 3851 | February 24, 1827 | John Frederick William Herschel | elliptical galaxy |
| NGC 3861 | March 23, 1827 | John Frederick William Herschel | spiral galaxy |
| NGC 4048 | March 23, 1827 | John Frederick William Herschel | lenticular galaxy |
| NGC 3457 | March 25, 1827 | John Frederick William Herschel | elliptical galaxy |
| NGC 3841 | March 25, 1827 | John Frederick William Herschel | elliptical galaxy |
| NGC 3561 | March 30, 1827 | John Frederick William Herschel | lenticular galaxy |
| NGC 3964 | March 30, 1827 | John Frederick William Herschel | lenticular galaxy |
| NGC 3880 | April 29, 1827 | John Frederick William Herschel | elliptical galaxy |
| NGC 3881 | April 29, 1827 | John Frederick William Herschel | lenticular galaxy |
| NGC 3935 | April 29, 1827 | John Frederick William Herschel | radio galaxy |
| NGC 4113 | April 29, 1827 | John Frederick William Herschel | radio galaxy |
| NGC 204 | October 16, 1827 | John Frederick William Herschel | lenticular galaxy |
| NGC 483 | November 11, 1827 | John Frederick William Herschel | lenticular galaxy |
| NGC 226 | November 22, 1827 | John Frederick William Herschel | spiral galaxy |
| NGC 468 | November 22, 1827 | John Frederick William Herschel | spiral galaxy |
| NGC 494 | November 22, 1827 | John Frederick William Herschel | spiral galaxy |
| NGC 504 | November 22, 1827 | John Frederick William Herschel | lenticular galaxy |
| NGC 566 | November 22, 1827 | John Frederick William Herschel | lenticular galaxy |
| NGC 608 | November 22, 1827 | John Frederick William Herschel | spiral galaxy |