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| Imager: | James Edward Keeler |
| Object: | M101/NGC5457 |
| Name: | None |
| Type: | Galaxy. |
| Constellation: | Ursa Major |
| Site: | Mount Hamilton, California, USA |
| Date: | 1899 |
| Telescope: | Crossley 36" Reflector |
| Optical System: | Newtonian Reflector |
| Mount: | Other German Equatorial |
| Mount Type: | German Equatorial |
| Camera: | Not Known |
| Camera Type: | Not Known |
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