The sessions of the Planetarium of Porto have a duration of about 40 minutes and accommodate 93 people under a dome of 12.5m in diameter. The program is adapted to each of the public, from the smallest to the adults. The Planetarium has an auditorium, a bar and a shop with books and articles related to Astronomy. Its main mission is the encouragement of the population to the area of ​​sciences, mainly astronomy and associated technologies.