Please click the link for any video that interests you to read more about it. Then follow the instructions on the Gumroad website if you wish to purchase it. Once you have purchased a video, the link you will use for streaming it will be sent to you by email immediately.
If you experience any problems or you prefer to pay for your video(s) by credit card over the phone, please do not hesitate to contact AAVSO Headquarters by phone - 617-354-0484 (ask for Owen) or by email: aavso@aavso.org.
COMPLETE SET - $200 (save $35 over the purchase of all individual videos)
Individual videos:
Introduction - $15 (77 min)
The Good and Bad of Science - $15 (88 min)
Astrophysics - $15 (84 min)
CCD Detectors - $15 (154 min)
Filter Systems - $10 (72 min)
Bias & Dark Current - $10 (53 min)
Flat Fielding - $15 (150 min)
CCD Camera Selection & Calibration - $15 (185 min)
Atmosphere - $10 (62 min)
Its All About Time - $10 (52 min)
Statistics - $15 (80 min)
Image Processing - $10 (32 min)
Photometry Concepts & Suggested Reading - $15 (56 min)
Transformation - $15 (95 min)
Advanced Procedures - $15 (148 min)
Project Review - $10 (39 min)
Curious Cases - $10 (39 min)
Point Spread Function Fitting - $15 (70 min)