The AAVSO The AAVSO and and

Dorrit’s Dorrit’s ContributionsContributions

Arne A. HendenDirector

Became member in 1930First term as council member

in 1943 (Director MMO 1957-1978)AAVSO President 1961-1963Olcott Distingished Service

Award 2002

Dorrit and the AAVSO

Dorrit at the June 1961 AAVSO meeting

Dorrit’s AAVSO

membership application

AAVSO meeting, 1930

AAVSO meeting, 1930

BD +20 2337 is AB Leo, a semiregular pulsating star

BD +20 2337 is AB Leo, a semiregular pulsating star

The AAVSO has 5128 observations of AB Leo in its database

No AAVSO observations of this suspected flare star!

90th birthday symposium, 1997

AAVSO council meeting, 1998

MWM, Dorrit, and Janet, February 1993

Council Service

1943-1945 Councilor (2 years) 1954-1958 Councilor (4 years) 1958-1960 2nd VP (2 years) 1960-1961 1st VP (1 year) 1961-1963 President (2 years) 1963-1965 Past Pres. (2 years) 1972-1974 Councilor (2 years) 1977-1981 Councilor (4 years) 1989-1993 Councilor (4 years)

Total: 23 years!

Talking with John Percy, AAVSO President, 1990

Giving AAVSO paper, about 1995

MMO Years (1957-1978)

105 students, many attended AAVSO meetingsRoughly 358 variables observed, 111 new or

revised periodsFriedel and Kundsin, Photographic Observations

of RS Oph, 1958 (first student paper)44 AAVSO Abstract papers by students41 AAVSO Journal papers by students

Receiving Olcott Distinguished

Service Award, 2002

AAVSO Publications

4 books16 AAVSO Abstract

papers36 AAVSO Journal

papers (last in 2002)

Dorrit’s Contributions to the AAVSO

Years of service to AAVSO

Dorrit’s Contributions to the AAVSO

Years of service to AAVSOMentoring of students

Dorrit’s Contributions to the AAVSO

Years of service to AAVSOMentoring of studentsPapers (JAAVSO)

Dorrit’s Contributions to the AAVSO

Years of service to AAVSOMentoring of studentsPapers (JAAVSO)Finding Janet!