High pixel rejection with comet (guided on nucleus)

[LorenzoM]

Hello, I have a set of 5 images of the Lovejoy comet.
All the images have been guided on the nucleus so the stars appear to be moved, and moreover dithering was active during acquisition. During integration process, because stars move the software recognize them as unwanted pixel and they are rejected.
However if I remove high pixel clip stars are intact but clusters of hot pixels remain.
How can I proceed to integrate this images, removing hot pixels as usual but leaving stars?

Thank you for your attention!
Lorenzo

[Zocky]

Lorenzo, first calibrate your images with calibration frames. Then try to register your set of images to the stars, and after that using CometAlignment tool register images to the comet. Now when you have registered images, you can proceed to the ImageIntegration. Play around with Pixel Rejection parameters, and you should get nice image.