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- Ralph Copeland
Credited to Ralph Copeland
8 inventions and discoveries
| Invention or discovery | Date | Type |
|---|---|---|
| NGC 4072 | April 3, 1872 | lenticular galaxy |
| NGC 2570 | February 20, 1873 | spiral galaxy |
| NGC 739 | January 9, 1874 | lenticular galaxy |
| NGC 2429 | March 10, 1874 | spiral galaxy |
| NGC 3743 | March 18, 1874 | lenticular galaxy |
| NGC 3758 | March 18, 1874 | astrophysical X-ray source |
| NGC 2457 | March 22, 1874 | spiral galaxy |
| NGC 3736 | 1885 | spiral galaxy |