| Invention or discovery | Inventor or discoverer | Type |
|---|---|---|
| NGC 2308 | Édouard Stephan | spiral galaxy |
| NGC 4072 | Ralph Copeland | lenticular galaxy |
| Invention or discovery | Inventor or discoverer | Type |
|---|---|---|
| NGC 2308 | Édouard Stephan | spiral galaxy |
| NGC 4072 | Ralph Copeland | lenticular galaxy |