Back M16Eagle Nebula in Emission-Line Click to display the full resolution Object InfoTypeDiffuse NebulaConstellationSerpensDistance7,000 ly Capture DetailsDateSeptember 7, 2007LocationCarlsbad, CAExposureSII 4x15 (2x2), Ha 8x15 (1x1), OIII 4x15 (bin 2x2) as RGBNotesImaged over multiple nights EquipmentOpticsTakahashi FSQ-106N RefractorFocal Length530mm @f/5MountAstro-Physics 900GTOCameraSBIG ST-2000XMFocuserRobo-FocusFiltersCFW10A, Astrodon 6nm SII, Ha, OIIISoftwareMaxim DL, Photoshop