| Convention |
Dates |
GoHs
|
| Ad Astra I |
June 13-15, 1980 |
James Hogan, Steve Simmons
|
| Ad Astra II |
June 11-13, 1982 |
Jerry Pournelle, Ro Lutz-Nagey
|
| Ad Astra III |
September 23-25, 1983 |
Ben Bova, Ken Fletcher
|
| Ad Astra IV |
September 28-30, 1984 |
Dean Ing, David C. Onley, Bob Passovoy
|
| Ad Astra V |
June 7-9, 1985 |
David Brin, Vonda McIntyre, Mike Glyer
|
| Ad Astra VI |
June 13-15, 1986 |
Steven Brust, Roger Zelazny, Frank Kelly Freas
|
| Ad Astra 7 |
June 12-14, 1987 |
C. J. Cherryh, Elisabeth Vonarburg, Diana Gallagher Wu
|
| Ad Astra 8 |
June 10-12, 1988 |
Orson Scott Card, R. A. MacAvoy, Fran Skene, Taral
|
| Ad Astra 9 |
June 9-11, 1989 |
John Varley, Kerry O'Quinn
|
| Ad Astra 10 |
June 8-10, 1990 |
Terry Pratchett, Frank Kelly Freas, Larry Stewart
|
| Ad Astra 11 |
June 7-9, 1991 |
Barbara Hambly, George Alec Effinger, Bob Eggleton
|
| Ad Astra 12 |
June 5-7, 1992 |
Katherine Kurtz, Lois McMaster Bujold, Jan Howard Finder
|
| Ad Astra 13 |
June 4-6, 1993 |
Frederik Pohl, Dave Duncan, Robin Wood
|
| Ad Astra 14 |
June 17-19, 1994 |
L. Sprague de Camp, Catherine Crook de Camp, Diane Duane, Peter Morwood, George Alec Effinger
|
| Ad Astra 15 |
June 16-18, 1995 |
Roger Zelazny, A. C. Crispin, Shawna McCarthy, Wayne Barlowe, Kim Newman, Stephen Jones, Michael Copabianco, Ellen Datlow
|
| Ad Astra 16 |
June 7-9, 1996 |
Larry Niven, James P. Hogan, Philip Pullman, Robert J. Sawyer, Kathryn Cramer
|
| Ad Astra XVII |
June 13-15, 1997 |
Steven Brust, Tim Powers, John Clute
|
| Ad Astra 18 / Ad Astra '98 |
June 5-7, 1998 |
Josepha Sherman, Tanya Huff, Keith & Gary Arseneau
|
| Ad Astra 2000 |
February 18-20, 2000 |
Nancy Kress, Charles de Lint, Christopher Stasheff, Scott Edelman, Lloyd Penney, and Yvonne Penney
|
| Ad Astra 2001 |
February 23-25, 2001 |
Connie Willis, David G. Hartwell, Rick Green, Robert J. Sawyer, Urban Tapestry
|
| Ad Astra 2002 |
February 8-10, 2002 |
Guy Gavriel Kay, John Howe, Julie E. Czerneda, Ted Nasmith
|
| Ad Astra XXII |
March 21-23, 2003 |
David Brin, Tanya Huff, Robert Gould, Brian Froud
|
| Ad Astra 2004 |
April 2-4, 2004 |
C. J. Cherryh, Robert Charles Wilson, Don Bassingthwaite, Patrick Nielsen Hayden, Mark Askwith, Gord Rose
|
| Ad Astra XXIV |
April 8-10, 2005 |
Nalo Hopkinson, Don Hutchison, Tom Smith, Charles Vess, Peter Watts
|
| Ad Astra 25 |
March 31-April 2, 2006 |
Kelley Armstrong, Terry Brooks, Peter David, Ed Greenwood, Betsy Mitchell, Martin Springett, David Warren
|
| Ad Astra 26 |
March 2-4, 2007 |
Ed Beard, Jr., Cory Doctorow, Phyllis Gotlieb, Stephen Jones, Lee Knight, Chris Knight
|
| Ad Astra 27 |
March 28-30, 2008 |
Yvonne Gilbert, Howard Tayler, Christopher Golden, Rebecca Moesta, Kevin J. Anderson, Dr. Shelley Rabinovitch, Glen Loates, Wayne Brown
|
| Ad Astra 28 |
March 27-29, 2009 |
Melyssa Ade, Nigel Bennett, Kent Burles, David Drake, Joanne Ellen Hansen, Tamora Pierce, Timothy Zahn, Michael Green, Mary-Ellen McAlonen
|
| Ad Astra 29 |
April 9-11, 2010 |
Aaron Allston, Todd McCaffrey, Robert J. Sawyer, Eric Flint, Robert Pincombe, Cathy Palmer-Lister
|
| Ad Astra 30 |
April 8-10, 2011 |
Mercedes Lackey, Larry Dixon
|
| Ad Astra 31 |
April 13-15, 2012 |
Harry Turtledove, Lesley Livingston, Shelly Shapiro, Joe Jusko, Peter Halasz
|
| Ad Astra 32 |
April 5-7, 2013 |
Jim Butcher, Shannon Butcher, Stephen Hunt
|
| Ad Astra 33 |
April 4-6, 2014 |
David Weber, Steven Erikson, Anne Groell, Patricia Briggs, Donato Giancola, Mark Townsend
|
| Ad Astra 2015 |
April 10-12, 2015 |
Anne Bishop, Charles de Lint, MaryAnn Harris, Denis McGrath, Monica Pacheco
|
| Ad Astra 2016 |
April 29-May 1, 2016 |
Jack Whyte, Sandra Kasturi, Brett Savory
|
| Ad Astra 2017 |
May 5-7, 2017 |
Brandon Sanderson, Kristen Britain, S. M. Stirling, Eric Choi
|
| Ad Astra 2018 |
July 13-15, 2018 |
Bill Fawcett, Maria V. Synder, Timothy Zahn, Jody Lynn Nye, Sylvian Neuvel
|
| Ad Astra 2019 |
July 12-14, 2019 |
|
Ad Astra 2020 |
May 1-3, 2020 |
Heather Dale, Ellen Kushner, Peter Kenneth
|
Ad Astra 2021 |
2021 |
|
