Stockholm Observatory has a regular program of activities for the general public. Twice a month during the academic year, the observatory makes available its 10-m-long 0.5-m- and 0.6-m-diameter double refractor for observations of the Moon, planets and nebulae. Attendance is by reservation for individuals, groups or school classes. Lectures are also given by the observatory staff at these occasions. Because they are very popular they are soon fully booked, and in order not to disappoint too many people, the observatory also has an approximately annual "Open House" on a Saturday or Sunday, at which no reservations are needed. These Open Houses may be timed to coincide with a celestial event such as a solar eclipse or the visitation of a comet.
Twice a week, an astronomer is on telephone-duty for questions from the general public. Other staff members are available for consultation by secondary school students. Stockholm Observatory also accepts apprentice students from secondary schools for one-week internships at the Observatory. A program of collaboration has been initiated with a nearby secondary school (Saltsjöbadens Samskola) which has a special astronomical curriculum. Finally, some of the faculty members and graduate students are very active in media such as radio, TV and the press.