Catechism of the Catholic Church §331 — excerpt
Christ is the centre of the angelic world. They are his angels: "When the Son of man comes in his glory, and all the angels with him.
This translation is under copyright, so only the cited words are quoted here. Follow the link for the full text. Translation: English translation of the Catechism of the Catholic Church, 2nd ed. (Libreria Editrice Vaticana), as posted at vatican.va.