Node: Deleting and adding objects, Next: , Previous: Labels, Up: Input scripts

5.6 Deleting and adding stars and nebulae

Sometimes you have to remove stars or nebulae from the map, especially because they collide with other objects. If you've already read how to change labels, this is very straightforward. You remove sky objects with `delete' and add them with `add'. Both commands take a list of objects that is ended with a semicolon ;:

     delete LEO 63  HD 97605 ;
     add NGC 6992 ;

The `add' command is useful mostly for nebulae, because by default, PP3 only includes all objects of the Messier catalogue, but only other objects with a minimal brightness, see Filtering by brightness.