The original Greek word used in Acts 7:43 is Ῥεμφάν - meaning Rhemphan. Later on this would become the mythology known as Saturn.
Most images I found in relation, SEEM to be equivalent to the Star of David.
What's your point? We can find different origins to symbols very easily. The adaptation for use in other religions means only that man was borrowing from earlier myths and ideologies . . . Such is the way of ALL religion. What about the Christian Cross?
https://en.wikipedia.org/wiki/Christian_cross#Pre-Christian