AAVSO Observer Code
EJDB
Affiliation
American Association of Variable Star Observers (AAVSO)
Full Name
John Ewan
Location
Delta, CO, US
CHOICE Courses Completed
| CCD Photometry, Part I | 2020-01-31 |
| CCD Photometry, Part II | 2020-03-02 |
| How to use VSTAR | 2020-06-05 |
| Exoplanet Observing | 2021-01-05 |
| Variable Star Classification and Light Curves | 2021-03-26 |
| Exoplanet Observing | 2021-04-30 |
| Observing and Counting Sunspots | 2021-05-31 |
| Visual Observing Basics | 2021-08-23 |
| Photometry using VPhot | 2021-08-20 |
| Observational Best Practices | 2025-10-13 |