They replaced the previous division into seven sectors: "Sun", "Solar system", "Non-stationary stars", "Stellar atmospheres and envelopes", "Chemically peculiar stars", "Stellar clusters" and "Galaxies".
They rearranged the former department into seven sections: "Sun", "Solar system", "Unpredictable stars", "Outer layers of stellar bodies", "Stars with unusual chemical characteristics", "Clusters of stars" and "Galaxies".