Rotate & Position the half sphere on the pedestal

Change the view to the side view instead of perspective view. Select the half sphere and go to the Channel Box. To make it lay flat, go to Rotate X and put in the value 270. If you put 90 degrees, the half circle lays flat but the top is underneath, so instead you subtract 90 from 360 degrees. Once you do that, go to the Channel Box and go to Translate Y. Put in the value 2.6, you do this because the pedestal is at 2.3, so you want to put the half sphere .3 higher.