How haz I lived without this for so long?

The R2-D2 Planetarium uses a 1W white LED as a light source, runs for three hours on four AAA batteries and stands 21cm high. It has a projection range of 1.5-2.3m/4.9-7.5ft and a projection area of 1.8m/5.9ft circumference.

Here’s the planetarium showing the Death Star:

Link