Back NGC2237Rosette Nebula in Emission-Line Click to display the full resolution Object InfoTypeDiffuse NebulaConstellationMonocerosDistance5,500 ly Capture DetailsDateFebruary 16, 2007LocationCarlsbad, CAExposureHa 12x15, OIII 6x15 (bin 1x1) as RGBNotesHa also used as the Luminance layer EquipmentOpticsTakahashi FSQ-106N RefractorFocal Length530mm @f/5MountCelestron CGECameraSBIG ST-2000XMFocuserRobo-FocusFiltersCFW10A, Astrodon 6nm Ha, OIIISoftwareMaxIm DL 4, RegiStar, Photoshop cs2