| 55. |
2024 May 12-17 |
Toronto, Ontario, Canada |
| 54. |
2023 May 8-12 |
East Lansing, Michigan |
| 53. |
2022 April 25-28 |
Flatiron Institute in Manhattan, New York |
| 52. |
2021 May 17-21 |
A virtual meeting |
| 51. |
2020 August 3-7 |
A virtual meeting |
| 50. |
2019 June 10-13 |
Boulder, Colorado |
| 49. |
2018 April 15-19 |
San Jose, California |
| 48. |
2017 June 11-15 |
Queen Mary University of London, London, UK |
| 47. |
2016 May 22–26 |
Nashville, Tennessee |
| 46. |
2015 May 3–7 |
Pasadena, California |
| 45. |
2014 Apr 28–May 1 |
Philadelphia, Pennsylvania |
| 44. |
2013 May 5–9 |
Paraty, Brazil |
| 43. |
2012 May 6–10 |
Timberline Lodge, Mt. Hood, Oregon |
| 42. |
2011 Apr 10–14 |
Austin, Texas |
| 41. |
2010 Apr 25–29 |
Boston, Massachusetts |
| 40. |
2009 May 2–5 |
Virginia Beach, Virginia |
| 39. |
2008 Apr 28–May 1 |
SwRI, Boulder, Colorado |
| 38. |
2007 May 6–10 |
University of Michigan, Ann Arbor, Michigan |
| 37. |
2006 Jun 25–29 |
Saint Mary's University, Halifax, Nova Scotia, Canada |
| 36. |
2005 Apr 10–14 |
Santa Barbara, California |
| 35. |
2004 Apr 20–23 |
Cannes, France |
| 34. |
2003 May 4–7 |
Cornell University, Ithaca, New York |
| 33. |
2002 Apr 21–24 |
Timberline Lodge, Mt. Hood, Oregon |
| 32. |
2001 Apr 22–25 |
LPI, Houston, Texas |
| 31. |
2000 Apr 9–12 |
Yosemite Valley, California |
| 30. |
1999 Apr 28–May 1 |
Estes Park, Colorado |
| 29. |
1998 Apr 1–3 |
University of Virginia, Charlottesville, Virginia |
| 28. |
1997 Apr 14–16 |
Lowell Observatory, Flagstaff, Arizona |
| 27. |
1996 Apr 15–17 |
US Naval Observatory, Washington, D.C. |
| 26. |
1995 Apr 24–26 |
Yosemite Valley, California |
| 25. |
1994 Mar 27–29 |
Texas A&M - Kingsville, Kingsville, Texas |
| 24. |
1993 May 13–15 |
Santa Barbara, California |
| 23. |
1992 Jun 3–5 |
Adler Planetarium, Chicago, Illinois |
| 22. |
1991 May 16–18 |
Key Biscayne, Florida |
| 21. |
1990 Apr 25–27 |
University of Texas at Austin |
| 20. |
1989 Aug 28–30 |
Jet Propulsion Laboratory, Pasadena, California |
| 19. |
1988 Jul 25–26 |
National Bureau of Standards, Gaithersburg, Maryland |
| 18. |
1987 May 7–9 |
Center for Astrophysics, Boston, Massachusetts |
| 17. |
1986 Apr 22–24 |
Santa Barbara, California |
| 16. |
1985 Mar 28–29 |
University of Texas, Austin, Texas |
| 15. |
1984 Jun 14–15 |
Space Telescope Science Inst., Baltimore, Maryland |
| 14. |
1983 Jun 16–17 |
University of Chicago, Chicago, Illinois |
| 13. |
1982 Jan 13–14 |
University of Colorado, Boulder, Colorado |
| 12. |
1981 Mar 23–24 |
University of Alabama, Tuscaloosa, Alabama |
| 11. |
1980 Jun 18–20 |
University of Maryland, College Park, Maryland |
| 10. |
1979 Feb 28–Mar 2 |
Stanford University, Palo Alto, California |
| 9. |
1978 Jan 11–13 |
University of Texas, Austin, Texas |
| 8. |
1976 Dec 2–4 |
University of North Carolina, Chapel Hill, North Carolina |
| 7. |
1975 Dec 11–12 |
Jet Propulsion Laboratory, Pasadena, California |
| 6. |
1974 Dec 8–10 |
University of South Florida, Tampa, Florida |
| 5. |
1973 Nov 30–Dec 1 |
University of Arizona, Tucson, Arizona |
| 4. |
1973 Jun 20–23 |
University of Cincinatti, Cincinatti, Ohio |
| 3. |
1972 Mar 2–3 |
University of Maryland, College Park, Maryland |
| 2. |
1970 Dec 7–9 |
University of South Florida, Tampa, Florida |
| 1. |
1970 Jan 28–30 |
University of Texas, Austin, Texas (Photo) |
