Image data from 18 Sep 2023, taken on-site at the IAS Hakos Observatory, Namibia. The spiral galaxy NGC 1097 in Fornax with a back then new type II supernova 2023rev, discovered on 08 Sep 2023. So only 10 days old in this image (see marker), or 45 million years, depending on the perspective.
More details at Astrobin.
IAS – Internationale Amateursternwarte e.V. – Hakos Observatory, Namibia
IAS 20″ Alluna RC, f/8 @ 4120 mm, 10 Micron GM 4000 HPS
QHY268M, Baader LRGB
39x L, 16x R, 18x G. 17x B 200s, binning 2×2, gain 56, offset 10, -5C, 20 flats, 50 bias, 20 darks
Data calibration/integration: PixInsight
Image processing: PixInsight, Photoshop, Lightroom