Hi, that seemed to be the solution... so i changed the spec as you told me... but no solution, then i changed the Fits Header Length and diameter to the LX200 spec... no solution. Then i did erase the hole Header and schwups after 10 sevc i had a positiv solution. So anything in the header is mismatched. Kstars is working with J2020.4 coordinates and fits has J2000 data... may be? where to change the J2020 data?
Matthias