Back NGC2174Monkey Head Nebula Click to display the full resolution Object InfoTypeEmission NebulaConstellationOrionDistance6,400 ly Capture DetailsDateJanuary 8, 2011LocationLittle Blair Valley, Anza-Borrego Desert, CAExposureSII 3x15 (bin 2x2), Ha 8x15 (bin 1x1), OIII 3x15 (bin 2x2) as RGBNotesHa also used as the Luminance layer EquipmentOpticsTakahashi FSQ-106N RefractorFocal Length530mm @f/5MountAstro-Physics 900GTOCameraSBIG ST-10XMEFocuserRobo-FocusFiltersCFW10A, Astrodon 6nm SII, 3nm Ha, 6nm OIIISoftwareMaxim DL, CCDStack, Photoshop