Back M16Eagle Nebula in Emission-Line Click to display the full resolution Object InfoTypeDiffuse NebulaConstellationSerpensDistance7,000 ly Capture DetailsDateJuly 26, 2019LocationPalomar Mountain, CAExposureSII 6x15, Ha 8x15, OIII 5x15 (bin 1x1) as RGB EquipmentOpticsDSI RC10C Corrected RC AstrographFocal Length1867mm @f/7.3MountAstro-Physics 900GTOCameraFLI ML-6303EFocuserBuilt-in Secondary FocuserFiltersFLI CFW2-7, Astrodon 3nm SII, Ha, OIIISoftwareMaxim DL, CCDStack, Photoshop