On August 24, Nobeyama Open Campus 2013 was held at the NAOJ Nobeyama Radio Observatory (NRO) in Nagano prefecture, Japan.

Although bad weather was expected from the continued rain until midnight, it was a fine day with occasional blue sky, and the total number of visitors was 2735. The ALMA/ASTE area attracted a lot of people, exceeding the number of souvenirs we prepared. ALMA has started its full operation with the inauguration ceremony in March. Astronomers explained how ALMA telescope works and its recent observation results showing posters and miniature models, and through mini-lectures and movies.