Скачать или смотреть The Rice Hat Nebula: A Cosmic Secret Unveiled

SH2-224 is a supernova remnant in the constellation of Auriga. The remnant is made up of two distinct parts, one being a massive round ball shape, and the other having the shape of a triangle. The way the triangle-shaped section lies by the round ball makes the nebula look like a person wearing a conical hat. The Rice Hat Nebula is located approximately 14 700 light-years away from Earth and the age of the structure is between 13 000 and 24 000 years.

Data for this image was gathered during 9 sessions between 2024-11-08 and 2024-12-11.
Data for this image: 121x300s S-II, 151x300s Ha, 120x300s O-III.
Total number of exposures 392 with a total integration time of 32,6 hours.
Processing: PixInsight with HOO palette with SRGB stars.
Equipment: SkyWatcher EvoStar 80ED Pro (0,85x FR/FF) and ZWO ASI294MM Pro on SkyWatcher HEQ5 Pro with SkyWatcher EvoGuide 50ED and ZWO ASI120MM Mini. ZWO SII, Ha, and OIII filters.
Location: 63 degrees north with a bortle 4 sky.

Astrophotography step by step SHO processing in PixInsight
   • Astrophotography step by step SHO processi...  

00:00:00 Introduction
00:01:13 Look at those northern lights
00:01:53 32,6 hours of SHO data
00:03:44 Linear processing
00:08:19 Stretching and addressing artifacts
00:10:41 Using Perfect Palette Picker
00:14:17 Non-Linear processing
00:20:10 Integrate synthetic RGB stars
00:21:48 Join HOO starless with SRGB stars
00:22:28 Conclusions
00:22:59 Showcase and ending

My images and information about my gear can be found on my website: https://www.frosth.se