1. Download Celestia
, install and launch.
2. RETURN. "Moon" RETURN. G.
3. Note the distance in the info display at upper left. Now use HOME and END to set your distance at 400,000 km, roughly the apogee of the Moon from Earth. (The default FOV is noted at lower right. You can change that if you wish, but the default view will do for this exercise.)
4. Now go to Jupiter: 5. G.
5. Again, set your distance to (approximately) 400,000 km. A super of the two images looks like this:
(I have orbits turned on, which is what those lines are.)