Strong Moonlight interfering but an unexpected clear night so all good. Nice sharp open cluster and 7129 is a HOYS object I image a lot.
Below is a less processed image showing the Moon gradients. By processing them out you definitely lose details.
|Object ID||NGC 7142 Open Cluster|
|Telescope||250mm f4.8 Newtonian|
|Exposure(s)||20 x 280s|
darks, flats, bias