How do I add a custom object to a plan? I have a custom object called M81-M82 that centres on a point between the two galaxies. When I add it to the plan it automatically changes to the normal object M81.
Try creating a favorite in SkyAtlas/Search/My Favorites, name it M81-M82, then select it when creating the plan. It will not be named M81-M82 (why?), but at least the location will be correct.
I experienced the same issue: when trying to add a custom object (i.e. a previously added favorite) to a plan, the plan instead defaults to the nearest object in the SkyAtlas database. Definitely a bug.
Thanks for the replies. OK, I'll give it a go and see what happens. I couldn't try it straight away because of the presence of a full-sky nebula. I was just confused by the "apparent" switch of target whilst planning.