There are a few seats available in the CHOICE course, CCD Photometry Parts 1&2. The course runs March 23 - May 1 - STARTS MONDAY - and is taught by Ed Wiley. Cost is $35.00 for AAVSO members, $60.00 for non-members. [Click here to enroll. ] We will use the AAVSO Guide to CCD/CMOS Photometry as our basic reference. This course will use the AAVSO platform VPhot as the basic software for performing tasks such as measuring variables. A brief introduction to VPhot is provided but is not a substitute for taking the CHOICE VPhot course. Students who are not members of AAVSO will be provided temporary access to VPhot for purposes of the course. This course does not require students to have any equipment, not even a telescope. It does require students to have software for calibrating images and software for graphing data (example, a spreadsheet program). All images used in the first two weeks can be downloaded and processed by the student’s software. All images for the last four weeks will be available to all students as fully calibrated images uploaded to a common VPhot telescope account. See the course description for more details. Enroll by Sunday noon ET. Questions? Contact Elizabeth Waagen, eowaagen@aavso.org