Since its founding in 1911,[1] the American Association of Variable Star Observers (AAVSO) has coordinated, collected, evaluated, analyzed, published, and archived variable star observations made largely by amateur astronomers and makes the records available to professional astronomers, researchers, and educators. These records establish light curves depicting the variation in brightness of a star over time.
Since professional astronomers do not have the time or the resources to monitor every variable star, astronomy is one of the few sciences where amateurs can make genuine contributions to scientific research.[2] During 2011, the 100th year of the AAVSO's existence, the 20-millionth variable star observation was received into the database.[3] The AAVSO International Database currently stores over 35 million observations.[4] The organization receives nearly 1,000,000 observations annually from around 2,000 professional and amateur observers and is quoted regularly in scientific journals.[5][6][7]
The AAVSO is also very active in education and public outreach. They routinely hold training workshops for citizen science and publish papers with amateurs as coauthors. In the 1990s, the AAVSO developed the Hands-On Astrophysics curriculum, now known as Variable Star Astronomy[8] (with support from the National Science Foundation (NSF)). In 2009, the AAVSO was awarded a three-year $800,000 grant from the NSF to run Citizen Sky,[9] a pro-am collaboration project examining the 2009-2011 eclipse of the star epsilon Aurigae.[10]
The current director of the AAVSO is Styliani ("Stella") Kafka, who took over from Arne Henden in February 2015. The previous director of the AAVSO for many decades was Janet Mattei, who died in March 2004 of leukemia.[11]
Twenty scientists, mostly men, standing for a group photograph in 1916.
AAVSO members in 1916, meeting at Harvard College Observatory. The two women in the photograph are Ida E. Woods (front row) and Annie Jump Cannon (behind Woods).
The AAVSO headquarters were originally located at the residence of its founder William T. Olcott in Norwich, Connecticut. After AAVSO's incorporation in 1918 it de facto moved to Harvard College Observatory, which later officially provided an office as the AAVSO headquarters (1931–1953).[12] After then it moved around Cambridge before purchasing their first building in 1985 - The Clinton B. Ford Astronomical Data and Research Center.[13] In 2007, the AAVSO purchased and moved into the recently vacated premises of Sky & Telescope magazine.[14]
Minor Planet (8900) AAVSO is named for the organization.[15]
Current and former members
Recorders and Directors
William T. Olcott (1911–1918, Founder)
Leon Campbell (1915–1949)
Margaret Mayall (1949–1973)
Janet A. Mattei (AAVSO Director 1973–2003)
Elizabeth O. Waagen (2003–2005)
Arne Henden (2005–2015)
Styliani ("Stella") Kafka (2015-present)
Presidents
David B. Pickering (1917–1918)
Harold C. Bancroft, Jr. (1918–1919)
Leon Campbell (1919–1922)
Anne S. Young (1922–1924)
J. Ernest G. Yalden (1924–1926)
Charles C. Godfrey (1926–1927)
David B. Pickering (1927–1929)
Alice H. Farnsworth (1929–1931)
Harriet W. Bigelow (1931–1933)
Ernest W. Brown (1933–1935)
Harlow Shapley (1935–1937)
Charles W. Elmer (1937–1939)
Helen S. Hogg (1939–1941)
Dirk Brouwer (1941–1943)
Roy A. Seely (1943–1945)
Charles H. Smiley (1945–1947)
Marjorie Williams (1947–1948)
David W. Rosebrugh (1948–1949)
Neal J. Heines (1949–1951)
Martha Stahr Carpenter (1951–1954)
Cyrus F. Fernald (1954–1956)
Richard W. Hamilton (1956–1958)
Ralph N. Buckstaff (1958–1960)
E. Dorrit Hoffleit (1961–1963)
George Diedrich (1963–1965)
Edward G. Oravec (1965–1967)
Charles M. Good (1971–1973)
Casper H. Hossfield (1969–1971)
Frank J. DeKinder (1967–1969)
Charles E. Scovil (1973–1975)
George L. Fortier (1975–1977)
Marvin E. Baldwin (1977–1979)
Carl A. Anderson (1979–1981)
Arthur J. Stokes (1981–1983)
Ernst H. Mayer (1983–1985)
Thomas R. Williams (1985–1987)
Keith H. Danskin (1987–1989)
John R. Percy (1989–1991)
Martha L. Hazen (1991–1992)
Thomas R. Williams (1992–1993)
Wayne M. Lowder (1993–1995)
Albert V. Holm (1995–1997)
Gary Walker (1997–1999)
Lee Anne Willson (1999–2001)
Daniel H. Kaiser (2001–2003)
William G. Dillon (2003–2005)
David B. Williams (2005–2007)
Paula Szkody (2007–2009)
Jaime R. Garcia (2009–2011)
Other members
The AAVSO currently has over 2,000 members and observers, with approximately half of them from outside the United States. This list only consists of those with Wikipedia pages.
Leah B. Allen Charter Member [16]
Joseph Ashbrook
Rosina Dafter
Radha Gobinda Chandra[17]
Robert Evans (AAVSO Supernova Search Committee Chairperson 1985–2005)
Clinton B. Ford
Russell Merle Genet
Pamela L. Gay
Edward A. Halbach
Phoebe Waterman Haas
Carolyn Hurless
Richard Huziak
Albert F. A. L. Jones
Michael Koppelman
Giovanni B. Lacchini
Helen Lines
Richard D. Lines
Ben Mayer
Ruth J. Northcott
Arto Oksanen
M. Daniel Overbeek
Leslie Peltier
Lois Tripp Slocum
Peter Francis Williams
Ida E. Woods
Publications
AAVSO Alert Notice.
Journal of the American Association of Variable Star Observers (JAAVSO).
AAVSO Circular was published from 1970 until 2000 and edited by John E. Bortle.[18]
See also
List of astronomical societies
References
Saladyga, M. (1999). "The "Pre-Embryonic" State of the AAVSO: Amateur Observers of Variable Stars in the United States From 1875 to 1911". Journal of the American Association of Variable Star Observers. 27 (2): 154–170. Bibcode:1999JAVSO..27..154S.
Ferris, T. (2003). Seeing in the Dark: How Amateur Astronomers Are Discovering the Wonders of the Universe. Simon & Schuster. p. 54. ISBN 0-684-86580-7.
Simonsen, M. (February 23, 2011). "20 Million Observations by Amateur Astronomers". Universe Today. Retrieved 2011-05-16.
"35 million points and counting! | aavso.org". www.aavso.org. Retrieved 2018-04-11.
Percy, J. R.; Desjardins, A.; Yu, L.; Landis, H. J. (2002). "Small Amplitude Red Variables in the AAVSO Photoelectric Program: Light Curves and Periods". Publications of the Astronomical Society of the Pacific. 108: 139. Bibcode:1996PASP..108..139P. doi:10.1086/133703.
Cannizzo, J. K. (2002). "The Accretion Disk Limit Cycle Model: Toward an Understanding of the Long-Term Behavior of SS Cygni". The Astrophysical Journal. 419: 318. Bibcode:1993ApJ...419..318C. doi:10.1086/173486.
Kiss, L. L.; Szatmáry, K.; Cadmus, R. R. Jr.; Mattei, J. A. (1999). "Multiperiodicity in semiregular variables. I. General properties". Astronomy and Astrophysics. 346: 542–555. arXiv:astro-ph/9904128. Bibcode:1999A&A...346..542K.
Variable Star Astronomy
"Citizen Sky". Archived from the original on 2016-12-01. Retrieved 2019-05-17.
NSF.gov
Williams, T. R.; Willson, L. A. (2004). "Obituary: Janet Akyüz Mattei, 1943-2004". Bulletin of the American Astronomical Society. 36 (5): 1681–1682. Bibcode:2004BAAS...36.1681W.
Williams, T. R.; Saladyga, M. (2011). Advancing Variable Star Astronomy - The Centennial History of the American Association of Variable Star Observers. Cambridge University Press. ISBN 978-0-521-51912-0.
Clinton B. Ford Astronomical Data and Research Center Archived 2006-12-31 at the Wayback Machine
AAVSO.org
"(8900) AAVSO = 1995 UD2" (PDF). Minor Planet Circular. Minor Planet Center. 1 May 2003. Retrieved 2012-07-14.
Dorrit Hoffleit "The Maria Mitchell Observatory: For Astronomical Research and Public Enlightenment" Journal of the American Association of Variable Star Observers Volume 30, 2001, p70, AAVSO.org Archived 2009-01-09 at the Wayback Machine where her photograph from 1930 appears.
AAVSO: Part Four: The AAVSO and International Cooperation
"John E. Bortle - 2013 Leslie Peltier Award". Archived from the original on 20 June 2015. Retrieved 26 September 2014.
External links
AAVSO website
History of the AAVSO
Amateur Astronomy Reaches New Heights Space.com, June 28, 2000
A New Foundation for the AAVSO article in the January 2007 issue of Sky & Telescope magazine
Red Hot News… Possible Nova in Sagittarius! Universe Today, August 9, 2009
100 Years of Citizen Science (1 December 2010)
Hellenica World - Scientific Library
Retrieved from "http://en.wikipedia.org/"
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