![20-inch ritchey-chretien, NA, astrofotografie, astronomie, astronomy, astrophotography, galaxy, grus, grus quartet, hakos, hakos guest farm, ias, ias observatory, ias observatory hakos, khomas, kranich, namibia, ngc7552, spiral galaxy, world](https://photo.m-j-s.net/blog/uploads/2023/09/ngc7552_lrgb_v1-ngc_7552_-_grus_quartet_galaxy_-_ias_hakos__namibia_-_sep_2023_v1.jpg)
Completing the Grus Quartet with the spiral galaxy NGC 7552. Last data from September at IAS Observatory, Hakos, Namibia.
More details at Astrobin coming soon.
IAS – Internationale Amateursternwarte e.V. – Hakos Observatory, Namibia
IAS 20″ Alluna RC, f/8 @ 4120 mm, 10 Micron GM 4000 HPS
QHY268M, Baader LRGB
62x L, 31x R, 29x G, 27x 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
![20-inch ritchey-chretien, NA, astrofotografie, astronomie, astronomy, astrophotography, galaxy, grus, grus quartet, hakos, hakos guest farm, ias, ias observatory, ias observatory hakos, khomas, kranich, namibia, ngc7552, spiral galaxy, world](https://photo.m-j-s.net/blog/uploads/2023/09/ngc7552_lrgb_v1_annotated-ngc_7552_-_grus_quartet_galaxy_-_ias_hakos__namibia_-_sep_2023_v1_annotated.jpg)