what is the importance of name numbers and matching with stars and parents name.

Matching a baby's name with parents or stars or name numbers have absolutely no importance in Islam, there is no such thing in Islam and in fact many scholars are against it and may consider it a form of shirk (worshiping something else other than Allah), especially if a person believes these things would have powers on the child's destiny. All power and destiny is with Allah SWT, not with stars or numbers or matching names with parents' names.