AAVSO CHOICE Courses in Astronomy and Observing Why take a CHOICE course? Tags choice CHOICE Courses training certification Carolyn Hurless Online Institute for Continuing Education Read more about AAVSO CHOICE Courses in Astronomy and Observing
Carolyn Hurless [Go back to CHOICE course calendar] Tags prolific observers choice Carolyn Hurless Online Institute for Continuing Education Carolyn Hurless AAVSO observers AAVSO historical figures Read more about Carolyn Hurless