Well now that I know the puzzle is called the Copernisis I believe I figured out the link between B1620-26 and the Isis 3 so here goes.
B1620-26 is a binary star system located in the Scorpion constellation. In Greek mythology Orion boasted he could kill all creatures on the earth, eventually he was killed by a scorpion. Zeus was so enthralled by this that he lifted the scorpion to the heavens. In a second Greek story Pheaton, the son of Helios, drove his fathers chariot and ended up flying too close to the scorpion, got scared and ended up scorching Africa turning it into a desert. Helios was the god of the sun and drove the sun chariot across the sky everyday. The Greeks like most cultures believed that the earth was at the center of the solar system. Copernicus came along and suggested a new HELIOcentric solar system. Hence Copernisis.
So in short:
B1620-26-->Scorpion-->Phaeton-->Helios-->Heliocentric-->Copernicus
I don't think I ever would have figured this out had i not know the final name of the puzzle. Of course this could entirely be wrong but it works for me.