Back NGC6888Crescent Nebula in Emission-Line Click to display the full resolution Object InfoTypeSupernova RemnantConstellationCygnusDistance5,000 ly Capture DetailsDateSeptember 7, 2008LocationCarlsbad, CAExposureHa 12x15 (bin 1x1) EquipmentOpticsTakahashi MT200 NewtonianFocal Length1600mm @f/8MountAstro-Physics 900GTOCameraSBIG ST-2000XMFiltersCFW10A, Astrodon 6nm HaSoftwareCCD Commander, Maxim DL, CCDStack, Photoshop