| 35.
| 2004 April 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
(Photo)
|
| 27.
| 1996 Apr 15-17
| U.S. Naval Observatory, Washington, D.C.
(Photo)
|
| 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, CA
|
| 19.
| 1988 Jul 25-26
| National Bureau of Standards, Gaithersburg, MD
|
| 18.
| 1987 May 7-9
| Center for Astrophysics, Boston, MA
|
| 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, MD
|
| 14.
| 1983 Jun 16-17
| University of Chicago, Chicago, IL
|
| 13.
| 1982 Jan 13-14
| University of Colorado, Boulder, CO
|
| 12.
| 1981 Mar 23-24
| University of Alabama, Tuscaloosa, AL
|
| 11.
| 1980 Jun 18-20
| University of Maryland, College Park, MD
|
| 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, NC
|
| 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)
|
![[DDA]](../ddalogoi.gif)
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