Changing How Many Objects are Displayed

 

When you first startup Stellarium the system displays a fairly basic amount of information:

Quite often you'll want to see objects that are more interesting, but they are farther away, and therefore fainter.

To view those objects you have to change the sensitivity of the screen:

1) Click on the "Sky and Viewing" icon on the left-side menu. The following screen appears:

2) Clicking on the DSO icon displays this screen:

Moving the sliders to the right will cause fainter objects to appear. Since there are more of them, your screen can become quickly cluttered.