It was released in the early 1990s as a descendant to the earlier Digistar , developed in the late 1970s .
Digistar II is a planetarium projection system by Evans & Sutherland - Digistar Users Group .
It was released in the early 1990s as a descendant to the earlier planetarium projection system , developed in the late 1970s .
Digistar II is a planetarium projection system by Evans & Sutherland - Digistar Users Group .