Translations:Siril:Tutorial manual registration/10/en

To do the automatic registration, select a isolated star in a grey image, preferably in the same layer than the layer used for registration (green by default) to be sure that the star appears in this layer, and click the "Go register" button. Also, make sure that the selection is large enough to include the star on every frame but not too large to avoid computing PSF of another star as you can see on the second image below.