M20 - The Trifid Nebula
| Object | The Trifid Nebula (M20), in Sagittarius | |
| Telescope (Photo) | Celestron 11" EdgeHD SCT OTA w/ Celestron EdgeHD 0.7 Focal Reducer on Losmandy G11 Mount | |
| Telescope (Guiding) | Orion EON 80mm ED Refractor @ f/12.5 (f/6.25 w/2x Powermate) on Losmandy G11 Mount | |
| Camera (Photo) | Canon 50Dh DSLR (Hutech Modified) | |
| Camera (Guiding) | Meade DSI Pro III w/ PHD Guiding | |
| Exposure Detail | Excluded-average combination of 22 images at 300 seconds each (captured using ImagesPlus 4.50), full calibration (bias, dark, flat, flat-dark), and initial image processing using ImagesPlus 4.50A; final image processing using Photoshop CS5.1 | |
| Location | Cincinnati Astronomical Society's Dark-Sky Site (Adams County, Ohio) (N38.876, W83.464) | |
| Date | 06/15/12 | |
| Comments | Above image is first light through new Celestron EdgeHD 0.7 focal reducer. Also first use of Optec TCF-Si temperature-controlled focuser. Image is cropped only by a few pixels at right and top, to remove dithering effects. |