Did the symbols of star in Christianity and Judaism originate independently? In the literature of Christianity, the symbolic drawing of star is a pentagram picturising a five-pointed star. Judaism, on the other hand, uses hexagram that is, a six-pointed star . I wish  to know whether the symbolic representation of star in Christianity and Judaism originated and/or evolved independently. Views of any denomination are most welcome.
It would certainly seem that the symbols came about independently.
Symbols in Christian Art and Architecture says of the two stars:


  The five-pointed star is the star of Bethlehem. Shaped roughly like a human being, it represents Jesus' incarnation.
  The Christian five-pointed star should be distinguished from the pagan pentagram, which is formed of five lines which intersect. Most often shown upside down, the pentagram is associated with satanic ritual.
  
  Num. 24:17 "I see him, but not now; I behold him, but not near. A star will come out of Jacob; a scepter will rise out of Israel. (NIV)
  
  Matt. 2:1 After Jesus was born in Bethlehem in Judea, during the time of King Herod, Magi(n) from the east came to Jerusalem 2 and asked, "Where is the one who has been born king of the Jews? We saw his star in the east(n) and have come to worship him." 
  
  The six-pointed star is the Creator's star. Its six points stand for the six days of creation. The points are also said to represent the six attributes of God - power, wisdom, majesty, love, mercy and justice. This star is also known today as the Star of David, and is a symbol of modern-day Israel. The six-pointed star is of ancient origin and is used in many religions with a variety of meanings.