Hi everyone! 
I am working on a project for photometric analysis performed with amateur telescopes and I am developing a python code to do it. 
I proudly use Ekos to perform my observations and for this reason I hope someone of the developers could help me for the issue I am going to introduce you. 
At some step I have to overplot a grid of coordinates to the analysed image I acquired and solved with ekos. 
Could you suggest me some recipe to convert the parameters related to the coordinates stored in the keywords of the fits file of each image in order to reconstruct the coordinate grid for the image? 
Have you some paper to suggest me? 
Thank you in advance. 

F.

Hi,

Is this something you are looking for ??
docs.astropy.org/en/stable/generated/exa...o-plot-fits-image-py

/Markku

Hi Frank, I‘ll send you a link later on with my solutions on GitHub, it shows up like this:
mountwizzard4.readthedocs.io/en/latest/_...image_distortion.png

Hope this helps.

Michel

Edit:
Here the link
github.com/mworion/MountWizzard4/blob/ma...extWindows/imageW.py

the important part isbut you need to have WCS projection coordinates in the fits header.

Hi guys! 
Thank you for your replies! The solution of mworion solved my issue !