AAVSO CHOICE Courses in Astronomy and Observing What are CHOICE courses? 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
