|
I haven't used Hartung's, but had a friend's copy of Burnham's on long loan at the same time as I started using the Night Sky Observer's Guide. There were many objects for which Burnham's had more detail, but I personally found the Night Sky Observer's Guide easier to use partly due to layout, the size of the book (ie larger format), the way the charts fit so well with the notes, the sketches and photographs etc.
|