. General description of the database . Data: . Sunspot groups . Calcium flocculas . H-alpha filaments . Protuberances . Solar corona . Eruptions . Daily indices: . Wolf numbers . Sunspot areas . Synoptic maps . Indices derived from the catalogue data: . Summary data on separate sunspots . Monthly and yearly means of sunspot and faculae areas . Selection from the database: . Sunspot groups . Calcium flocculas . H-alpha filaments . Eruptions . The paticipants of the project . List of publications