The AAVSO is completing an all-sky survey designed to provide calibrated photometry and modern astrometry for 70 million stars in the magnitude range 10 < V < 17. Five filters are being used: Johnson B and V to connect with the decades of prior photometry, especially of variable stars; and Sloan g', r', i' to provide the bridge to many modern photometric studies. The goal is to provide a calibrated star approximately every square arcminute of sky, with an accuracy of a few percent.
Seven data releases have been made, calibrating about 52 million stars. The eighth release will occur in about a month. We are also extending this survey to include the Zs and Y bandpasses, and with a short exposure set of images to push saturation to V=7. Early results of the survey will be presented, along with a timeline for completion.
LCO Seminar Series, 6740 Cortona Dr, Suite 102, Goleta, CA 93117