What does Aster mean?
From Greek 'aster' ('star'). It is also the name of the star-shaped daisy-family flower, which was itself named for the Greek word, giving the name a botanical as well as celestial sense.
What does Kyrie mean?
From Greek 'kyrie', the vocative of 'kyrios' ('lord, master'), best known from the Christian liturgical prayer 'Kyrie eleison' ('Lord, have mercy'). Its modern popularity owes much to basketball player Kyrie Irving.