Observatory Chaloem Phrakiat 7th cycle Chachoengsao or regional observatory Chachoengsao is the second full-scale regional observatory in Thailand with the main goal of being a learning center. Astronomy for citizens and local educational institutions Support academic service in astronomy to the community Support for teaching and learning in educational institutions. There is a stargazing field for outdoor astronomical observation activities. There are astronomical paintings over 100 meters long around the stargazing field wall. observatory botanical garden It is a botanical garden for preserving edible plants and religious plants, Chai Dao Building, or Planetarium Building. It has a semicircular roof shape. Above is a star projection dome with a diameter of 10 meters, equipped with a fulldome digital star projector system with a resolution of 25 million pixels, capable of accommodating 50 visitors at a time. deep space object and phenomena astronomical The exhibits rotate too.