Back M101Pinwheel Galaxy Click to display the full resolution Object InfoTypeSpiral GalaxyConstellationUrsa MajorDistance27,000,000 ly Capture DetailsDateMay 30, 2014LocationPalomar Mountain, CAExposureLum 12x15, R 4x15, G 4x15, B 4x15 (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