AnnotateImage seems to misplace some (not all!) annotations. This even happens
when annotating a flawlessly looking image that has been generated by
CatalogStarGenerator.
To illustrate the problem, see the attached PDF with 3 screen shots; they show the calls
on CatalogStarGenerator, AnnotateImage, and the resulting annotated image.
In the image look out for the stars Alnitak, Alnilam, and Mintaka (the
marking of the latter is displaced). See also for two void (?) crosses near
the text "Mintaka" on the equator.
Peter.