Need advice for creating a simple scene with very large dimensions As an experiment I was trying to create a scene with a few simple objects but with extremely large dimensions.  Think planet and moon sized objects and a couple of human scale objects in the foreground.


I have units set to metric.
I have set my camera's clipping end value 10000km
I moved the camera to 0, -9000km, 0 looking toward the origin (I can see the 3D cursor there)
I create a UV sphere at the origin with size 4000km.


The sphere is not visible.

I've tried a number of variants to no avail.

What am I missing?  Or is this just out of scope for Blender for some reason.
You need to change the clip distance not only on the camera, but on the viewport as well.





Also if you are going to deal with those magnitudes, you might want to change the scale, both on the Viewport and the scene->units. 

NOTE: watch out for Z-fighitng when rendering long distances. Read:

Weird shading effects when rendering at long distance