Reply To: Comet imaging help – C/2023 A3 › Forums › Comets › Comet imaging help – C/2023 A3 › Reply To: Comet imaging help – C/2023 A3 27 October 2024 at 11:16 am #626095 Grant PrivettParticipant I’m no expert but would start with the flat field issue – that seems a decent easy-win as the background brightness variation from vignetting is hiding the extent of the comet. How many counts were in your RAW flat field frames?
