Wallpaper author:
Steve Teel
03 Nov 2025
The Medusa Nebula, A66 21, Sh2-274, HSO
Processed using APP, PixInsight with Blur, Noise, and StarXTerminator, NarrowbandNormalization, ImageBlend, GHS, and Affinity Photo 2 as inspired by Adam Block's Narrowband Processing tutorial.
Dataset from which the image was processed
Sh 2-274
8 credit
- Type of target............................................................................................................................Planetary Nebula
- Camera............................................................................................................................QHY 600M
- Target coordinates............................................................................................................................RA 112.2613 Dec 13.2468
- Hemisphere............................................................................................................................Southern
- Telescope location............................................................................................................................Chile
- Transient event............................................................................................................................No
- Observed on............................................................................................................................11 Nov 2024 - 07 Feb 2025
Filter | Avg Exp (s) | Total Exposure | Subframes |
|---|---|---|---|
| Halpha | 293 | 3h35m | 44 |
| SII | 293 | 3h30m | 43 |
| OIII | 314 | 3h45m | 43 |