These are articles that address the fact that Nostradamus was an astrologer (according to Peter Lemesurier, Nostradamus was not a very good astrologer) and used astrological language in his letters and quatrains. Those posts are here:
Article “Star of Bethlehem” – Submit Contact Form to Read
Astrological Terms in The Prophecies of Nostradamus
Presentation of the Star of Bethlehem
Secret Squirrel article on Jesus at age 12 found in the Temple [addition to Presentation of the Star of Bethlehem]
Nostradamus Blog 