MetaGuide: M8 Lagoon Nebula in 3nm Ha, with Atik 383L+ and EdgeHD 11 with reducer on CGE-Pro
Click for full size
M8, Lagoon Nebula with 3nm Ha filter
| Imaging Optics | Celestron EdgeHD 11 with reducer at f/7 |
| Mount | Celestron CGE-Pro |
| Guiding Software | MetaGuide with dithering from SGP |
| Guiding Mode | Off-axis guiding with Hutech OAG5 |
| Imaging Camera | Atik 383L+ |
| Guiding Camera | QHY5l-ii |
| Collimation | MetaGuide |
| Focus | SGP and RoboFocus on the primary focuser - no mirror locks used |
| Exposure Time | 10x5m |
| Image Scale | 0.57" per pixel |
| Raw FWHM | Down to 1.5" in subs |
| Image Processing | Calibration and stack in custom software, only levels in Photoshop CS6 - no other processing |
| Image Processing - Other | Intentionally left uncropped to show full field of 8300 sensor |
| Image Acquisition | SGP |
| Other Software | PECTool, TheSkyX Pro for best guidestar selection with field of view indicator (FOVI) |
| Other Hardware | Pyxis OAG Rotator for best guidestar, Telegizmos 365 cover, Long usb cable to outside setup |
| Date | Aug. 15, 2015 |
| Filter | Astrodon 3nm H-alpha |
Close up of to show hourglass core
Above slightly sharpened in photoshop