The Horsehead Nebula
I took some shots of the nebua that evening. After my first viewings of the material i sorted it out already.
I had 25 Photos with different exposure time. All between 30s and 300s.
As the Orion Region comes closer to the horizon by end of march, i decided not to take any other photos of Barnard 33 until next season. Therefor i decided to process the few material with PixInsight. With a look at the exposure time, i really like the result and cant wait to go for the nebula again next season.
Lessons Learned
Well, the problems to solve in future became even more:
- Mount and telescope alignment – it gets better and better
- Star alignment – this starts driving me crazy
- still no guiding
- too short exposure time
- post processing
- Horsehead Nebula and unmodded EOS is not the best combination
There is a lot to learn and to master, and even more things not listed here yet …
Session details
| Telescope | VIXEN ED80sf |
|---|---|
| Effective focal length | 600 mm |
| Camera | Canon EOS M100 |
| Mount | Skywatcher HEQ5 Pro |
| Date of capture | 21 February 2021 |
| Exposure (lights) | 20 × 60 s |
| Total integration | 20 min |
| Calibration frames | – |
| Sensitivity | ISO 1250 |
| Processing date | 22 February 2021 |
| Software stack | Deep Sky Stacker, Affinity Photo |
| Location | Koblenz |
| Focal ratio | f/7,5 |
| Image scale | 1,28 ″/px |
| Field of view | 128,0 × 85,3 ′ |




