This is a stack of 10x5 minute sub exposures using my QHY9m TEC CCD camera and Sky-Watcher Equinox 120 ED APO Refractor. The image scale is 1.23 arcsec/pixel and the field-of-view (FOV) is 68.6 x 51.3 arcminutes. These exposures were calibrated and stacked using AIP4WIN. This image is so much better than the previous image of M42
QHY9m TEC CCD,SW Equinox 120 ED APO,CCD 10 x 5 minute sub exposures. No Filters.