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.

羞龍天文摄影 Xiulong Astrophotography

C/2023 A3 Tsuchinshan-ATLAS 21/10/2024 30sec LRGB

Comet C/2023 Tsuchinshan-ATLAS in LRGB, William Optics Redcat51 and Asi1600mm Pro, -20C, 30sec subframes integration, 90 degrees clockwise rotated and crop, and 101 degrees roatetd and crop.

Astrobin: https://www.astrobin.com/hjs3vu/D/

90 Degree widefield (I love my Redcat)

Original field view

羞龍天文摄影 Xiulong Astrophotography