AAS meetings are dynamic gatherings of professional astronomers from around the world. The winter meetings typically boast 2000 participants or more. The four days are filled with scientific sessions, both poster and oral as well as invited sessions from prominent researchers with exciting results. The summer meetings have topical sessions, which are more lengthy oral sessions focused on particular topics. The meeting program is decided upon by the three vice-Presidents with logistical details provided by the AAS meeting coordinator.

AAS meetings take place twice each year, once in early January and once in late May or early June. See Future Meetings page for dates. See Division websites for divisional meeting dates.