Plenary Presentations
- Prize Lectures
- Invited Lectures
Plenary sessions are 50 minutes long; no other sessions or events are scheduled in parallel with them. To allow time for introductions, prize presentations, and question-and-answer (Q&A) periods, prize and invited lecturers should plan to speak for at most 40 minutes. Plenary speakers will receive special abstract and presentation instructions from the AAS Executive Office.
Contributed Presentations
- Research Contributed Oral Presentations
- Research Contributed iPoster-Plus/iPoster/Poster Presentations
- Dissertation Oral Presentations
History Presentations
- History Oral Presentations
- History iPoster-Plus/iPoster/Poster Presentations
Education Presentations
- Education Oral Presentations
- Education iPoster-Plus/iPoster/Poster Presentations
Regular, history, and education oral presentations, as well as dissertation oral presentations, are arranged by topic and are scheduled in 90-minute sessions of five to nine talks each. For a regular, history, or education oral presentation, allow 5 minutes for the talk, 3 minutes for Q&A and 2 minutes for change over. For a dissertation oral presentation, allow 15 minutes for the talk, 3 minutes for Q&A and 2 minutes for change over.
Regular, history, and education posters allow far more time and flexibility than the corresponding oral presentations and are the default presentation types. Posters are arranged by topic and are usually displayed for one full day, including about 90 minutes when very few other sessions or events are scheduled, though if circumstances permit, at some meetings they are displayed for multiple days.
Other Presentations
- Division Prize & Invited Presentations
- Division Contributed Oral and Poster Presentations
- Special Session Invited Presentations
- Special Session Contribted Oral and Poster Presentations
When AAS Divisions meet with the AAS, they organize oral and poster sessions and sometimes, prize and/or invited lectures. The latter are sometimes scheduled into regular oral sessions and may have time limits different from those associated with plenary presentations or contributed oral presentations; Division prize and invited lecturers will receive special abstract and presentation instructions from the AAS Executive Office or their respective Division leaders.
The format of Special Sessions sessions is at the discretion of the organizer, who may choose to include invited presentations and/or contributed oral and/or poster presentations. Invited lecturers will receive special abstract and presentation instructions from the AAS Executive Office or their respective session organizers. If contributed presentations are welcome, suitable categories will be included on the abstract-submission form. Acceptance of such abstracts is at the discretion of the relevant session organizer, but if a paper is not accepted into the requested Special Session, it will be scheduled in another appropriate session of contributed presentations. If enough poster abstracts are received, an associated poster session will be scheduled on the same day(s) as the Special Session.