Wallpaper author:
Beatrice Heinze
16 Dec 2025
IC 4685
IC 4685, is a beautiful emission and reflection nebula in the constellation Sagittarius, located close to the more famous M8 Lagoon Nebula.
This is my first attempt at processing this object, and I really enjoyed it. The dark nebulae in it also make this object fascinating.
I processed this nebula in SHO, the Hubble Palette.
My workflow consisted of: Automatic DBE (Seti Astro), Russell Croman's three tools: BlurXTerminator, StarXTerminator, and NoiseXTerminator. After that, I also used GHS, NarrowbandNormalization, and SelectiveColorCorrection (Jürgen Terpe), among others.
Dataset from which the image was processed
IC 4685
3 credit
- Type of target............................................................................................................................Reflection Nebula
- Camera............................................................................................................................QHY 600M
- Target coordinates............................................................................................................................RA 272.4042 Dec -24.0414
- Hemisphere............................................................................................................................Southern
- Telescope location............................................................................................................................Chile
- Transient event............................................................................................................................No
- Observed on............................................................................................................................01 Sept 2023 - 14 Oct 2023
Filter | Avg Exp (s) | Total Exposure | Subframes |
|---|---|---|---|
| Halpha | 281 | 1h15m | 16 |
| SII | 281 | 1h15m | 16 |
| OIII | 340 | 1h25m | 15 |