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AAVSO History

Officers of the AAVSO since 1911



1911–1918   William T. Olcott (Assisted by Leon Campbell after 1915)

Note: from 1918 to 1925 this function was handled by the Recording Secretary and Corresponding Secretary

1925–1949   Leon Campbell

1949–1956   Margaret W. Mayall


Director (title changed from Recorder in 1956)

1956–1973   Margaret W. Mayall

1973–2003   Janet A. Mattei (d. 22 March 2004)

2003–2005   Elizabeth O. Waagen (Interim Director September 2003–February 2005)

2005–2015   Arne A. Henden

History of AAVSO Alert Notices and AAVSO Special Notices

Notifying observers and researchers of discoveries and requests for AAVSO observing assistance

Prior to the inception of the AAVSO Alert Notice in 1974, observers were alerted to a discovery or the need for observations of an object via a post card from AAVSO HQ or, if extremely urgent, a phone call from the Director or his/her assistant.

The AAVSO Alert Notice

AAVSO Bulletin 80 for 2017 - Letter to Observers

Letter to Users of 2017 Bulletin

                                                                                                                                            February 2017

Dear Observers,

AAVSO Bulletin 79 for 2016 - Letter to Observers

Letter to Users of 2016 Bulletin

                                                                                                                                                        February 2016

Dear Observers,

AAVSO Bulletin 78 for 2015 - Letter to Observers

Letter to Users of 2015 Bulletin

                                                                                                                                                        February 2015

Dear Observers,

AAVSO Bulletin 77 for 2014 - Letter to Observers

Letter to Users of 2014 Bulletin

                                                                                                                                                        February 2014

Dear Observers,

AAVSO Bulletin 76 for 2013 - Letter to Observers

Letter to Users of 2013 Bulletin

                                                                                                                                                             February 2013

Dear Observers,


AAVSO 49 Bay State Rd. Cambridge, MA 02138 617-354-0484