Astronomy & Astrophysics from Antarctica (AAA) is a Scientific Research Program of SCAR, the Scientific Committee on Antarctic Research. The objectives of AAA are to coordinate all astronomical activities in Antarctica ensuring the best possible outcomes from international investment in Antarctic astronomy, and to maximize the opportunities for productive interaction with other disciplines. This meeting aims to bring together all the key players in Antarctic astronomy to conclude the 2015 – 2018 Implementation Plan and to coordinate future strategies and collaborations. This is the fifth meeting in the series, following the AAA2011 in Sydney, Australia, the AAA2013 at the Certosa di Pontignano, Italy, the AAA2015 in Hawaii, USA, and the AAA2017 in Chiang Mai, Thailand. In addition to Antarctic research, projects related to Arctic astronomy are also invited to AAA2019.