Back NGC869 / NGC884Double Cluster in Perseus Click to display the full resolution Object InfoTypeOpen ClusterConstellationPerseusDistance25,100 ly Capture DetailsDateSeptember 19, 2014LocationPalomar Mountain, CAExposureR 9x5, G 9x5, B 9x5 (bin 1x1) EquipmentOpticsDSI RC10C Corrected RC AstrographFocal Length1867mm @f/7.3MountAstro-Physics 900GTOCameraFLI ML-6303EFocuserBuilt-in Secondary FocuserFiltersFLI CFW2-7, Astrodon Gen 2 LRGBSoftwareMaxIm DL, CCDStack, Photoshop