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M51, The Whirlpool Galaxy(John W. O'Neal, II)
| Acquisition Date | : | March 23rd,2011 |
| Camera | : | Canon 40D |
| Camera Settings | : | 60 x 60 second exposures at 1600 ISO. |
| Telescope | : | Astro-Tech (AT8IN) 8" Imaging Newtonian. |
| Mount | : | Losmandy G-11 |
| Adapter / Prime / Afocal / Other | : | Prime Focus, Orion Skyglow Filter. Orion Field Flattener. |
| Processing Package / Processing Applied | : | Deepsky Stacker. Adobe Photoshop CS3 |
| Web Site | : | http://onealphotosite.shutterfly.com/ |
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