NGC281 SHO and Ha integration as luminance
NGC281 integration by summing several records in SHO narrowband by William Optics Redcat 51, ASI1600mm on EQM35 collected between 2021 and this year.
According to to Nik Szymanek approach to Sulphur-II Luminance Compositing I added Ha band in starless cleaned version as luminance within Photoshop postprocessing flow.
