Soul Nebula
IC1848 / Westerhout 5 / Sharpless 2-199 / LBN 667
The Soul Nebula is a young, about a 1 million year old, emission nebula in Cassiopeia. It is 7,500 light-years away and is 100 light-years across. This nebula is close to the Heart Nebula we captured in 2021.
Combined broadband & narrowband
We have just added over 3 hours of narrowband data (Ha & OIII) to the previously captured broadband. This way more of the nebulosity is visible while still retaining natural star color.
October 2022
Better noise reduction and double resolution.
Technical details
Temperature was -1°C, relative humidity 83%. The FOV and rotation was slightly adjusted compared to the 2021 version to capture more of the nebula.
| Telescope | Skywatcher Esprit 100ED (f/5.5) |
| Filter | IDAS D2 (multi-bandpass light pollution filter) |
| Optolong L-eXtreme (dual-bandpass narrowband) | |
| Field flattener | Skywatcher Esprit (1x) |
| Camera | Canon 7D Mark II |
| Resolution | 4853 x 3956 (cropped) |
| Light frames | 80/80, 30s @ ISO 1600, 6h40m (broadband) |
| 20/20, 10m @ ISO 1600, 3h20m (narrowband) | |
| Combined total exposure: 10h | |
| Dark frames | - |
| Bias frames | 123 (30, 93) |
| Flat frames | 69 (21, 48) |
| Location | Bolton, UK |
| Local time | 2021-11-21 19:12 - 03:59 (broadband) |
| 2022-01-05 19:26 - 00:37 (narrowband) | |
| Image center | 02h54m39s +60°32'12" |
| Field of view | 2°2'52s x 1°40'10s (rotation -27.963°) |
Map of the neighbourhood
Broadband only version from 2021
Technical details
Temperature was 4°C, relative humidty 83%. We decided to refocus after frame 36 and there was a need for a meridian flip after frame 48. Finally, we ran out of battery at 4am - both the rig and us :-) The only pictures we have made with this setup are of the Sun and of M13, so we are still very much learning the quirks of it.
| Resolution | 2508 x 1672 (scaled & cropped) |
| Image center | 02h53m56s +60°36'13" |
| Field of view | 2°7'37s x 1°25'4s |
See more details in the combined table.