AAVSO Observer Code
American Association of Variable Star Observers (AAVSO)
Full Name
Frank Dempsey
Pickering, ON, CA
Background/Interesting Fact
-visual observer since 1980's
-PEP observer intermittently since 1990's

CHOICE Courses Completed
Visual Observing Basics 2013-04-26
CCD Photometry, Part I 2013-05-01
Variable Star Classification and Light Curves 2014-05-14
How to use VSTAR 2014-06-11
How to use VPhot 2014-09-11
CCD School 2014 2014-08-08
DSLR Photometry 2014-11-24
CCD Photometry, Part II 2015-04-21
CCD Photometry, Part I 2016-10-11
CCD Photometry, Part II 2016-11-12
Photoelectric Photometry in the 21st Century 2017-06-02
Analyzing Data with Vstar 2017-07-24
Observing and Counting Sunspots 2019-07-08
Photoelectric Photometry in the 21st Century 2020-12-29