Astrophoto: Rosette Nebula – Caldwell 49 -03/21

Two important evenings for me. I had a lot of time for exposures and collected a lot of data, but the result shows where to focus on in the next months.

Astrophoto NGC 2237 Rosette Nebula Clear Skies 8+9.
I had two really nice evenings working on the Rosette Nebula. No real problems and in the end i was quite happe with the final result.

On this astrophoto the used EOS camera was not yet astromodified. I really like the version of this nebula much more with the OWB filter installed than the pictures without. Here is the result from 2021.

Same data – advanced processing

Hich resolution on Flickr

This is the reprocess 2023 version based on the 2021 data:

Lessons Learned

I collected a lot of light and stacked and processed it afterwards. I was quite happy with the results and the response on social networks were awesome. Now, with a look back there are a lot of problems to work on in the next months.

• A lot of noise!
• So i need even more photons.
• longer exposures
• dithering – something i started reading at.

I still was struggling with the bad support of my CANON M100 in the astrophoto tools.

Technical overview of Astrophoto NGC 2237 Rosette Nebula Clear Skies 8+9