Lion Nebula (SH2-132)

SH2-132, also known as the Lion Nebula because of its shape is a diffuse, faint emission nebula in Cepheus. This was bit of a pain to process as I left my camera set to ISO1600 so many of the bright stars really saturated during the ten minute sub-exposures. I had intended to use ISO 800 which prevents most of the stars from saturating, but what can ya do. The field of my Esprit 120 coupled with my Canon 60Da was just able to cover the field.

Object SH2-132  Field center is  RA 22:17:57 Dec 55:55:58 Date 27 September 2019 Exposure 210 minutes (21 X 10 minutes)  ISO 1600 Camera Canon 60Da DSLR Optics SkyWatcher Esprit 120  f/7 APO refractor with  a  focal length of 840 mm Location SCO, St. Croix, Nova Scotia Processing This image was processed entirely in Images Plus. Masked stretching and split star processing used to enhance the image. Masked noise reduction using a frequency domain lowpass filter applied to the DSO layer and then it was recombined with the star layer. Image binned 2 by 2. Final sharpening, a slight star reduction and a saturation boost rounded out the processing. Since the 60Da has on sensor dark suppression no darks were used in the calibration.