This report introduces development of a basic Astronomical observation facility. The contents of this paper are as follows. 1. Astronomical observation facility for the purpose of show a star and celestial. 2. 58% Astronomical observation facility were 1000m^2 or less. 3. There are many cases an Astronomical observation facility is combined with an exhibition room and Planetarium. 4. There are many cases an Astronomical observation facility is built into a moutain by self-governing body.
